Coming and going with 〜てくる and 〜ていく

Grammar: Time and Sequence » 〜てくる・〜ていく

〜てくる and 〜ていく attach 来(く)る, “come”, and 行(い)く, “go”, to the て-form of another verb. The basic idea is direction. 〜てくる points toward the speaker’s side, and 〜ていく points away from it: 走(はし)ってくる is “come running”, and 走(はし)っていく is “go running”.

The same pair also works on a timeline. 〜てきた traces a change or an activity up to now, as in 寒(さむ)くなってきた, “it’s been getting colder”. 〜ていく carries it forward from now, as in これからも頑張(がんば)っていく, “I’ll keep at it”.

Usage Notes

“Toward the speaker” means toward the speaker’s side of the scene. That can be where they’re standing, their home, their school, or a place they’re talking about as “here”. The listener’s position doesn’t count unless the speaker takes it on.

After a て-form, くる and いく can be written in kana or as 来(く)る and 行(い)く. Both conjugate as usual: 来(く)る is irregular (きた, きて, こない, こい), and 行(い)く has the past 行(い)った and the て-form 行(い)って.

In casual speech, 〜ていく drops its い: 持(も)っていく becomes 持(も)ってく, and 持(も)っていった becomes 持(も)ってった. 〜てくる has no such short form.

The uses overlap. 雨(あめ)が降(ふ)ってきた can describe rain coming down toward you, or rain that has just started. Pick the reading that fits the scene.

Formation

View formation details
  1. Verb (て-form) + くる
    • 犬(いぬ)が走(はし)ってくる
    • "The dog comes running."
  2. Verb (て-form) + いく
    • 鳥(とり)が飛(と)んでいく
    • "The bird flies away."
  3. Verb (て-form) + きた
    • ジュースを買(か)ってきたよ
    • "I went and bought some juice."
  4. Verb (て-form) + いった
    • 友達(ともだち)は先(さき)に帰(かえ)っていった
    • "My friend went home first."
  5. Verb (て-form) + きて
    • 水(みず)を持(も)ってきて
    • "Bring some water."
  6. Verb (て-form) + いこう
    • これからも頑張(がんば)っていこう
    • "Let's keep working hard from here on."
  7. い-adjective (〜く) + なってくる・なっていく
    • 寒(さむ)くなってきた
    • "It's been getting colder."
  8. 〜てく・〜てった・〜てって (casual)
    • 傘(かさ)、持(も)ってって
    • "Take an umbrella with you."
    • Note: These are 〜ていく, 〜ていった, and 〜ていって with the い dropped.

Coming Toward or Going Away

With a verb of movement, 〜てくる says the movement heads toward the speaker, and 〜ていく says it heads away. 降(お)りる is just “come down” or “go down”. 降(お)りてくる is “come down to where we are”. 帰(かえ)ってくる is “come back home”, and 出(で)ていく is “go out” or “leave”.

The verb before くる or いく carries the meaning. くる and いく only add the direction. Things that can’t walk can still “come”, as in ボールが飛(と)んできた, “the ball came flying at me”.

The speaker’s side doesn’t have to be their exact location. It can be their home, their school, or whatever place they treat as “here” in the story they’re telling.

Example 1 of 4: According to Nostradamus with 〜によれば
Example 1 of 4
Manga panel from ちびまる子ちゃん showing example of According to Nostradamus with 〜によれば.
ちびまる子ちゃん » Volume 8 » Page 42

Maruko learns about Nostradamus and his predictions from a classmate. She tells her family about it, leading to them watching a TV show about it that night.

アナウンサー:
「ノストラダムスの大予言(だいよげん)によれば1999年(ねん)7月(がつ)に空(そら)から恐怖(きょうふ)の大王(だいおう)が降(お)りてきて」
“According to Nostradamus's great prophecy, in July 1999 a great king of terror will descend from the sky...”
「人類(じんるい)は滅亡(めつぼう)するという事(こと)であります」
“...and humanity will perish.”
View Full Example

A TV announcer reads out Nostradamus’s prophecy. 降(お)りる alone is “descend”. 降(お)りてくる says the king of terror comes down from the sky toward us, the people on the ground. きて is the て-form of くる, which links to the next line: humanity will perish.

Example 2 of 4: Receiving a throwing with 〜れる
Example 2 of 4
Manga panel from ご注文はうさぎですか? showing example of Receiving a throwing with 〜れる.
ご注文はうさぎですか? » Volume 1 » Page 100

After learning the fortunes she told didn’t come true for Chino and Rize, Cocoa lists the bad fortune she ran into.

ココア:
「そっかー」
“I see.”
「私(わたし)あんこが落下(らっか)してきたりスカートめくれちゃってたりシャロちゃんにお金(かね)投(な)げられたり色々(いろいろ)あって大変(たいへん)だったよー」
“All sorts of things happened to me, like Anko falling on me, my skirt flipping up, and having Syaro-chan throw money at me, so it was rough.”
「占(うらな)い勝負(しょうぶ)はティッピーの勝(か)ちだね」
“Then Tippy wins the fortune-telling contest.”
View Full Example

Cocoa lists her bad luck for the day. 落下(らっか)する is “fall”. 落下(らっか)してくる points the fall at her: Anko came down on top of her. たり marks it as one item in a list of things that happened.

Example 3 of 4: Nobody in the interview room with いざ入ったら
Example 3 of 4
The maid Aki Ishihara glances to the side with a troubled look. Above her, a desk holds a computer monitor, a keyboard, a mouse, and a stack of papers.
名探偵コナン » Volume 30 » Page 66

Kogoro, Ran, and Conan have arrived at a remote mansion whose owner has invited several famous detectives to dinner. The maid who greets them admits she has never met the owner. Asked about the guest list, she says she was given it at her job interview, and that the interview was a strange one.

亜紀(あき):
「割(わり)のいい仕事(しごと)だったので応募者(おうぼしゃ)が殺到(さっとう)したんですが、いざ面接(めんせつ)の部屋(へや)に入(はい)ったら、パソコンとこの晩餐会(ばんさんかい)の説明書(せつめいしょ)と招待客(しょうたいきゃく)のリストが机(つくえ)の上(うえ)に置(お)いてあるだけで誰(だれ)もいなかったんです…」
“It paid well, so applicants came flooding in. But when I actually went into the interview room, there was just a computer, instructions for this dinner party, and the guest list on the desk. Nobody was there…”
「私(わたし)の前(まえ)に並(なら)んだ応募者(おうぼしゃ)が次々(つぎつぎ)と首(くび)をかしげて部屋(へや)から出(で)て来(く)るので変(へん)だなあと思(おも)ってはいたんですけど…」
“The applicants in line ahead of me came out of the room one after another, looking puzzled, so I did think it was odd…”
Info Card:
「石原亜紀(いしはらあき)(23) メイド」
“Aki Ishihara (23), maid”
View Full Example

Aki waited in line outside the interview room, and the applicants ahead of her came out one after another, looking puzzled. 出(で)て来(く)る describes them coming out toward her side of the door. If she had been inside watching them leave, she would say 出(で)ていく.

Example 4 of 4: A loss of public order at school with 治安
Example 4 of 4
Manga panel from キラキラとギラギラ showing example of A loss of public order at school with 治安.
キラキラとギラギラ » Volume 1 » Page 195

Following Zen’s absence from school for a while, fights and disobedience have taken over the school grounds. When Lulu learns Zen hasn’t been at home either during this time, she travels to the mountains in search of him. After finding him, she explains the situation at school.

ルル:
「転校(てんこう)してきてから慣(な)れないことばかりで大変(たいへん)だったけど禅(ぜん)くんが学校(がっこう)を休(やす)んで学校(がっこう)の治安(ちあん)が悪(わる)くなって」
“Since I transferred to this school, everything has been unfamiliar and difficult, but ever since you've started missing school, the school's security has gotten worse...”
View Full Example

Lulu has tracked Zen down in the mountains to tell him what’s happening at school. 転校(てんこう)する is “transfer schools”. 転校(てんこう)してくる is “transfer in”, to the school that she and Zen share. They’re nowhere near it, but it’s still her “here”. てから is “since”.

Ways of Moving and Bringing Along

The て-form can also say how someone comes or goes, or what they’re doing on the way. 歩(ある)いてくる is “come on foot”, and 傘(かさ)をさしていく is “go with an umbrella up”. The person is doing both at once.

The most common pairs bring something or someone along:

TowardAwayMeaning
持(も)ってくる持(も)っていくbring / take (a thing)
連(つ)れてくる連(つ)れていくbring / take (a person or animal)
乗(の)せてくる乗(の)せていくgive someone a ride here / there

You should learn these as words rather than working them out each time. English “bring” and “take” don’t always match the Japanese choice. English says “I’ll bring it to your place”, but Japanese uses 持(も)っていく there, because the thing moves away from the speaker.

Example 1 of 5: Happy you came running over for me with 〜てくれる
Example 1 of 5
Manga panel from カードキャプターさくら showing example of Happy you came running over for me with 〜てくれる.
カードキャプターさくら » Volume 2 » Page 19

Sakura’s older brother and his friend show up for her school’s sports day event. During their picnic lunch, Sakura’s father runs up to the group and apologizes for missing the cheerleading event Sakura participated in. Tomoyo assures him she recorded it on video, and Yukito says he took photographs.

藤隆(ふじたか):
「ごめんね さくらさん」
“I'm sorry, Sakura.”
桜(さくら):
「ううん!」
“No, no!”
「走(はし)ってきてくれてうれしい!!」
“I'm so glad you came running over!!”
View Full Example

Sakura’s father missed her cheerleading event and runs up to apologize. 走(はし)ってくる is “come running”. 走(はし)って says how he came, and くる says he came toward Sakura. くれて adds that she’s grateful he did.

Example 2 of 5: Went and brought the wrong textbook with 〜ちゃう
Example 2 of 5
Manga panel from あしたは土曜日 showing example of Went and brought the wrong textbook with 〜ちゃう.
あしたは土曜日 » Volume 春・夏 » Page 10

Mina is startled to learn that today is Friday.

ミナ:
「どうしよう!!木曜日(もくようび)の教科書(きょうかしょ)持(も)ってきちゃったよ!」
“What'll I do?! I ended up bringing my textbook for Thursday!”
ユカリ:
「相(あい)変(か)わらずドジねー。」
“You're such a klutz, as usual.”
View Full Example

Mina has just found out it’s Friday. 持(も)ってくる is “bring”: she had the textbook with her when she came to school. きちゃった is きてしまった, so she brought it by mistake.

Example 3 of 5: Thank you for bringing me to the beach with 連れてきてくれてありがとう
Example 3 of 5
Manga panel from アオのハコ showing example of Thank you for bringing me to the beach with 連れてきてくれてありがとう.
アオのハコ » Volume 6 » Page 65

Chinatsu tells Taiki she’d like to go to the beach. A train ride later, they’re wading through the tide. After playing for a while, the two sit and watch the setting sun, and then it’s time to head back home.

千夏(ちなつ):
「連(つ)れてきてくれてありがとう」
“Thanks for bringing me.”
View Full Example

Chinatsu thanks Taiki at the end of their day at the beach. 連(つ)れてくる is “bring” for a person. They’re still at the beach, so the beach is the “here” that くる points to.

Example 4 of 5: We'll give you a ride with 〜てあげる
Example 4 of 5
Manga panel from ハクメイとミコチ showing example of We'll give you a ride with 〜てあげる.
ハクメイとミコチ » Volume 2 » Page 162

Hakumei and Mikochi search for a specific café to no avail. A couple of rodents come up from nearby water.

ネズミⒶ:
「私(わたし)ら場所(ばしょ)知(し)ってるからさ」
“We know where it is, so...”
ネズミⒷ:
「乗(の)せてってあげるよ」
“We'll give you a ride.”
View Full Example

Hakumei and Mikochi can’t find the café they’re looking for, and two rodents offer to carry them there. 乗(の)せていく is “take someone along as a passenger”, toward the café and away from here. In speech, ていって shortens to てって, and あげる offers it as a favor.

Example 5 of 5: Following after is bad with あかん
Example 5 of 5
Manga panel from ARIA The MASTERPIECE showing example of Following after is bad with あかん.
ARIA The MASTERPIECE » Volume 2 » Page 129

Alicia and Akari visit an island that’s modeled after part of Japan back on Earth. There, an elderly local woman tells the two of the fox spirits that visit the human world there. Akari is excited at the prospect of meeting one, but the old woman gives her a warning: on rare occasion, a fox will take a person back home with them.

おばあさん:
「神(かみ)さまの世界(せかい)と人間(にんげん)の世界(せかい)は違(ちが)うやさかい」
“Since the god world and the human world are different...”
「連(つ)れて行(い)かれたらあかん」
“...you mustn't get taken away.”
View Full Example

An old woman warns Akari that on rare occasions, a fox spirit takes a person back to its world. 連(つ)れていく is “take someone along”, and 連(つ)れて行(い)かれる is its passive, “be taken away”. The direction is away from the human world.

Doing Something, Then Coming

Here the て-form is something done somewhere else, and くる is coming here afterward, often back to where the person started. 買(か)ってくる is “go buy and come back”, and 見(み)てくる is “go look and come back”. English often leaves the return unsaid (“I’ll go get some juice”), but Japanese usually says it.

These are two cases here. In one, you leave, do something, and return, as in ちょっと聞(き)いてきます, “I’ll go ask”. In the other, you do something first and then come here, without starting out here, as in 昼(ひる)ご飯(はん)は食(た)べてきた, “I ate lunch before I came”.

行(い)ってくる is “go and come back”, and its polite form 行(い)ってきます is what people say when they leave home. The reply is 行(い)ってらっしゃい, “go and come back”.

Example 1 of 5: Want me to buy something with 〜てほしい
Example 1 of 5
Manga panel from ふらいんぐうぃっち showing example of Want me to buy something with 〜てほしい.
ふらいんぐうぃっち » Volume 1 » Page 114

Chinatsu gets home from school just as her mother is heading out to buy food for dinner. Chinatsu is invited to come along, but she says she’ll stay home as there’s a TV show she wants to watch.

お母(かあ)さん:
「じゃあ何(なに)か買(か)ってきてほしい物(もの)ある?」
“Then, is there anything you'd like me to buy?”
View Full Example

Chinatsu’s mother is heading out to buy food for dinner. 買(か)ってくる is “buy and bring home”. きて is the て-form that ほしい attaches to, so 買(か)ってきてほしい物(もの) is “something you want me to buy and bring back”.

Example 2 of 5: Picked up in my place with 〜の代わりに
Example 2 of 5
Manga panel from 一週間フレンズ。 showing example of Picked up in my place with 〜の代わりに.
一週間フレンズ。 » Volume 2 » Page 157

Fujimiya was able to work around forgetting her friends every Monday by using a journal to record her time spent with Hase. After Fujimiya discovers she can remember Hase’s friend Kiryuu, Hase gets jealous and reacts poorly. The following Monday, Fujimiya arrives at school with no memory of Hase or her journal, and Hase isn’t able to regain her trust. After school, Kiryuu walks with Fujimiya. Without mentioning Fujimiya eating lunch with Hase each day, he asks about how she spent her lunches last week. She isn’t certain. Without mentioning that Fujimiya previously had forgotten her journal at her desk and classmates found it, Kiryuu questions her about the after-school event.

藤宮(ふじみや):
「あっ 確(たし)か桐生(きりゅう)くん私(わたし)の代(か)わりに忘(わす)れ物(もの)を教室(きょうしつ)に取(と)ってきてくれて…」
“Ah, right… Kiryuu, you went to the classroom and picked up my forgotten item in place of me, didn't you…?”
桐生(きりゅう):
「その忘(わす)れ物(もの)って?」
“That forgotten item was...?”
View Full Example

Fujimiya recalls, a little unsure, that Kiryuu once fetched something she had left behind. 取(と)ってくる is “go get”: he went to the classroom, picked it up, and came back with it. に marks the classroom as where he went.

Example 3 of 5: Selling bananas with 〜のだ
Example 3 of 5
Manga panel from 三ツ星カラーズ showing example of Selling bananas with 〜のだ.
三ツ星カラーズ » Volume 1 » Page 22

Sacchan receives an urgent message from her mother. She and her friends hurry to Sacchan’s mother’s fruit store to find out what the issue is. Sacchan’s mother explains that the store has too many unsold bananas. If they don’t sell out today, Sacchan will be eating bananas for breakfast, lunch, and dinner for a while.

お母(かあ)さん:
「ということでバナナを売(う)り歩(ある)いてくるのだカラーズ諸君(しょくん)」
“That said, you're going around selling the bananas for me, my dear Colors.”
View Full Example

Sacchan’s mother has too many bananas in her fruit shop. 売(う)り歩(ある)く is “go around selling”. 〜てくる adds the return: the Colors go out, sell the bananas, and come back. The のだ turns it into an order.

Example 4 of 5: The milk here is good with 牛乳
Example 4 of 5
Manga panel from よつばと! showing example of The milk here is good with 牛乳.
よつばと! » Volume 1 » Page 58

Yotsuba and her father have their first breakfast since moving to a new house in a new town. Yotsuba takes a bite from her toast, then drinks down some milk.

よつば:
「こっちの牛乳(ぎゅうにゅう)はうめぇな!!」
“The milk here is good!”
父(とう)さん:
「(いっしょだろう…)よつば 今日(きょう)は遊(あそ)びに行(い)く時(とき) ちゃんといってきますって言(い)えよ」
“(It tastes the same...) Yotsuba, when you go out to play today, make sure you say "I'm off", okay?”
View Full Example

On their first morning in the new house, Yotsuba’s father tells her to say いってきます when she goes out to play. It’s the polite form of 行(い)ってくる, “go and come back”, the set phrase for leaving home. 遊(あそ)びに行(い)く earlier in the line is a different pattern, “go out to play”.

Example 5 of 5: Clearing out a room with 〜ておく
Example 5 of 5
Manga panel from ご注文はうさぎですか? showing example of Clearing out a room with 〜ておく.
ご注文はうさぎですか? » Volume 1 » Page 50

After Cocoa suggests if she were staying at Chiya’s place rather than Chino’s, that she’d be working for Chiya’s family’s tea house, Chiya takes to the idea.

千夜(ちや):
「じゃあ部屋(へや)を空(あ)けておくから早速(さっそく)荷物(にもつ)をまとめて来(き)てね」
“Then I'll clear out a room in advance, so go gather your things and come right away.”
ココア:
「誰(だれ)か止(と)めてよ!」
“Somebody stop her!”
View Full Example

Chiya offers to clear out a room at her house so Cocoa can live there instead. 荷物(にもつ)をまとめて来(き)て is “pack your things and come”. They’re at Chiya’s café right now, so this is the round trip: Cocoa would go home, pack, and come back here.

Doing Something, Then Going

〜ていく puts an action before leaving. 食(た)べていく is “eat before going”, and 寄(よ)っていく is “stop by on the way”. The action can happen right where the speaker is, which makes this a common way to invite someone to stay a little: お茶(ちゃ)でも飲(の)んでいきませんか, “won’t you have some tea before you go?”

It can also be something done to get ready for where you’re going. ワインを買(か)っていこう is “let’s buy some wine to take along”.

Manga panel from ご注文はうさぎですか? showing example of Asking to have tea with 〜てもいい.
ご注文はうさぎですか? » Volume 1 » Page 63

Following a misunderstanding, Cocoa and her friends ended up at the tea house where Syaro works.

ココア:
「せっかくだからお茶(ちゃ)してってもいいかな?」
“Since we have the chance, would it be okay if we had some tea ?”
シャロ:
「しょうがないわねー」
“I guess it can't be helped.”
View Full Example

A mix-up has brought Cocoa and her friends to the teahouse where Syaro works. お茶(ちゃ)する is “have tea”, and お茶(ちゃ)していく is “have tea here before we go”. In speech, していって becomes してって. てもいいかな asks Syaro if that’s all right.

Actions Aimed at You

〜てくる can point an action at the speaker without anyone moving. 言(い)ってくる is “say to me”, 電話(でんわ)してくる is “call me”, and にらんでくる is “glare at me”. Without くる, 文句(もんく)を言(い)う doesn’t say who hears the complaint. 文句(もんく)を言(い)ってくる makes the speaker the target.

These actions are often unexpected and unwelcome, like a store manager who butts in on everything. They can also be neutral, and some may be a pleasant surprises. How the speaker feels about it depends on the context, not on くる itself.

Manga panel from ふらいんぐうぃっち showing example of As if to say try and catch me 〜んばかり.
ふらいんぐうぃっち » Volume 1 » Page 78

Kei and Chinatsu watch as their cousin, Makoto, chases a pheasant back and forth across the field. During a break in the chase, Makoto explains her fascination with the bird.

真琴(まこと):
「常(つね)に届(とど)きそうで届(とど)かない距離(きょり)をキープしてて」
“It always keeps just out of reach, close enough that I think I can get it...”
「捕(つか)まえてみろよと言(い)わんばかりの目(め)で見(み)てくるんです」
“And it gives me a look as if to say, 'Try and catch me!'”
View Full Example

Makoto explains why she keeps chasing the pheasant. It stays just out of reach and looks at her as if to say “try and catch me”. The bird isn’t coming any closer. 見(み)てくる aims the look at Makoto.

Appearing and Disappearing

With verbs like 出(で)る, 見(み)える, and 浮(う)かぶ, 〜てくる means something appears or comes into view. 富士山(ふじさん)が見(み)えてきた is “Mount Fuji came into view”, and いいアイディアが浮(う)かんできた is “a good idea came to me”. 出(で)てくる is also how Japanese says a character “appears” in a story.

〜ていく is the reverse, with verbs like 消(き)える, 沈(しず)む, and 去(さ)る. 太陽(たいよう)が沈(しず)んでいく is “the sun sinks away”. Something disappears or stops existing, with a sense of moving away from the speaker.

Manga panel from 三ツ星カラーズ showing example of Yui's grandmother's place with 〜んち.
三ツ星カラーズ » Volume 5 » Page 127

As the end of the year approaches, Yui and her friends discuss which New Year foods they like and dislike.

結衣(ゆい):
「おばあちゃんち行(い)くと微妙(びみょう)なご飯(はん)たくさん出(で)てくるよね」
“When I go to my grandma's house, a lot of not-so-good food is served.”
さっちゃん:
「なかなかひどいな結衣(ゆい)」
“That's pretty bad, Yui.”
琴葉(ことは):
「結衣(ゆい)はおばあちゃんち行(い)くのか?」
“Are you going to your grandma's house, Yui?”
View Full Example

Yui and her friends compare New Year foods. At her grandmother’s, a lot of food she doesn’t care for gets served. 出(で)てくる is “come out” or “show up”, here dishes appearing on the table in front of her.

Feelings and Weather Setting In

〜てくる can mark the start of a feeling, a bodily sensation, or a change in the weather. 眠(ねむ)くなってきた is “I’m getting sleepy”, 疲(つか)れてきた is “I’m getting tired”, and 晴(は)れてきた is “it’s clearing up”. Nobody decides these. They come over the speaker a little at a time.

In English, “I’m getting ~” or “I’m starting to ~” usually fits. 〜ていく doesn’t mark the start of a feeling like this. だんだん眠(ねむ)くなっていく, “I’ll keep getting sleepier”, belongs to the gradual change use below.

Example 1 of 2: That schoolhouse over there with あれ
Example 1 of 2
Manga panel from ご注文はうさぎですか? showing example of That schoolhouse over there with あれ.
ご注文はうさぎですか? » Volume 1 » Page 32

Chiya takes Cocoa to see where her new school is located. Coca is filled with excitement to see it.

ココア:
「あれが私(わたし)の新(あたら)しい 学(まな)び舎(や)かぁ」
“So that over there is my new schoolhouse.”
「見(み)てるだけでわくわくしてくるよ」
“Just looking at it makes me excited.”
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Chiya has brought Cocoa to see her new school. わくわくする is “be excited”, and わくわくしてくる is the feeling rising in her just from looking at it.

Example 2 of 2: Too suspicious with 〜すぎる
Example 2 of 2
Manga panel from ご注文はうさぎですか? showing example of Too suspicious with 〜すぎる.
ご注文はうさぎですか? » Volume 1 » Page 114

Rize comments on how Chino and Cocoa seems to have gotten over their fight.

シャロ・千夜(ちや):
「いつもあんな感(かん)じじゃないの?」
“Aren't they always like that?”
リゼ:
「こいつらが鈍感(どんかん)なのか私(わたし)が勘繰(かんぐ)り過(す)ぎなのかわからなくなってくる…」
“I can't tell whether these two are oblivious, or if I'm reading into it too much...”
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Rize thinks Chino and Cocoa just made up after a fight, but Syaro and Chiya say they always act like that. Now Rize can’t tell whether Syaro and Chiya are oblivious or she’s reading too much into it. わからなくなる is “lose track” or “stop being able to tell”, and 〜てくる has the confusion setting in as she thinks about it.

Gradual Change

With verbs of change like なる, 増(ふ)える, and 変(か)わる, the pair splits a gradual change at a reference point, usually now. 〜てきた looks back at the change up to now: 人口(じんこう)が減(へ)ってきた, “the population has been falling”. 〜ていく looks ahead: 減(へ)っていく, “it will keep falling”.

The reference point can also be in the past, as in 発展(はってん)していった, “it went on to develop”. So 〜ていく isn’t a future tense. It means “onward from the reference point”.

だんだん and どんどん often appear with this use.

Riko, the trainee, vacuums the room in a turtleneck sweater. Two thought bubbles beside her trail toward a small drawing of glasses, marking them as Tsurukoma's thoughts.
舞妓さんちのまかないさん » Volume 8 » Page 142

The dance teacher and the house mistress send the maiko off with おきばりやす, “keep up the good work”. Later, over a cup of tea, Tsurukoma decides the phrase sounds cool and wants to say it herself. Watching Riko, the new trainee, vacuum the room, she realizes she could say it to her own junior.

つる駒(こま):
「理子(りこ)、最近(さいきん)京都弁(きょうとべん)しゃべるようになってきたし、」
“Riko's started speaking Kyoto dialect lately...”
「そこはちゃんとねぎらってやらんとあかんやろ。」
“...so I really ought to give her some credit for that.”
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Tsurukoma watches Riko, the new trainee, vacuuming. しゃべるようになる is “start speaking”. 〜てきた adds that the change has been building up to now. Riko has been using more and more Kyoto dialect lately.

Continuing up to Now or from Now On

With actions that go on over time, 〜てきた covers everything done up to now: ここで十年(じゅうねん)働(はたら)いてきました, “I’ve worked here for ten years”. It sums up a history, often with ずっと or 今(いま)まで, so the action has to be one that went on for a while or happened again and again. It doesn’t say whether the action has stopped.

〜ていく carries an action on from now: これからも続(つづ)けていく, “I’ll keep it up”.

〜ていく can also show steps done one after another, with no one going anywhere. 作(つく)り方(かた)を見(み)ていきましょう is “let’s go through how to make it”.

Example 1 of 4: Practicing for this day with 〜ために
Example 1 of 4
Ms. Mizuho grins with confidence, while an inset bubble shows her shouting at the piano late at night. Below her, Sami looks up with clenched fists and an open mouth, and a classmate with twin tails watches calmly.
ぼくの魔なむすめ » Volume 1 » Page 54

Ms. Mizuho is a new teacher. During her student teaching in Tokyo, a class survey called her lessons boring, and she wants her first graders to have fun. Today she is leading them on a school exploration. In the music room, the children crowd around the grand piano, and Sami asks whether it plays any songs. Ms. Mizuho sees her chance. She sits down at the piano, offers to play, and asks the class for requests.

みずほ先生(せんせい):
「フフフ… この日(ひ)のために子供(こども)の好(す)きな童謡(どうよう)から流行(りゅうこう)の曲(きょく)まで練習(れんしゅう)してきましたよ!!」
“Heh heh heh... For this day, I've practiced everything from the nursery rhymes kids love to the latest hits!!”
みずほ先生(せんせい):
「よっしゃアー!!!」
“Yeahhh!!!”
◯:
「夜(よ)な夜(よ)な練習(れんしゅう)するみずほ先生(せんせい)」
“Ms. Mizuho, practicing night after night”
サミ:
「えーーと… じゃあーー…」
“Ummm... Okay, then...”
View Full Example

Ms. Mizuho sits down at the piano in the music room. 練習(れんしゅう)してきました sums up all her practice leading up to today. The aside shows her practicing night after night.

Example 2 of 4: Being strict with oneself and one's student with 心を鬼にする
Example 2 of 4
Manga panel from 名探偵コナン showing example of Being strict with oneself and one's student with 心を鬼にする.
名探偵コナン » Volume 16 » Page 91

Conan’s classmates aren’t fond of their new teacher’s strict attitude. Ms. Kobayashi explains how at her last school, she couldn’t bring herself to be strict, and it allowed her students to get so out of control that students were injured in a fight.

小林(こばやし):
「だから、この学校(がっこう)では二度(にど)とあんな事(こと)は繰(く)り返(かえ)すまいと…」
“So, determined never to let anything like that happen again at this school...”
「心(こころ)を鬼(おに)にして自分(じぶん)にも生徒(せいと)にも厳(きび)しくしてきたの…」
“I hardened my heart and have been strict with myself and my students ever since...”
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Ms. Kobayashi explains that at her last school, she couldn’t bring herself to be strict, and her students got so out of hand that some were hurt in a fight. 厳(きび)しくしてきた is “I’ve been strict” all this time at her new school, not a single moment of turning strict.

Example 3 of 4: Losing all that built-up friendship with 水の泡になる
Example 3 of 4
Manga panel from 一週間フレンズ。 showing example of Losing all that built-up friendship with 水の泡になる.
一週間フレンズ。 » Volume 3 » Page 51

Although Fujimiya loses her memory of friends every Monday morning, she and Hase have become close enough that she feels comfortable around him when meeting him “for the first time” at school each Monday. Hase fears that progress will be lost during summer break.

長谷(はせ):
「俺(おれ)はせっかくの今(いま)までの努力(どりょく)が水(みず)の泡(あわ)になるのが嫌(いや)なの!」
“I hate seeing all my hard work up to now go down the drain!”
「藤宮(ふじみや)さんも頑張(がんば)ってきたのに!」
“Fujimiya-san has worked so hard, too!”
桐生(きりゅう):
「あーはいはい」
“Yeah, got it.”
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Hase is afraid summer break will undo the progress Fujimiya has made with him. 頑張(がんば)ってきた is all the effort she has made up to now. のに adds his frustration that it could go to waste.

Example 4 of 4: Grocery shopping plan understood with 了解
Example 4 of 4
Manga panel from たいようのいえ showing example of Grocery shopping plan understood with 了解.
たいようのいえ » Volume 5 » Page 107

Mao needs Hiro to go grocery shopping with her due to a sale that’s limited per customer. She tells him the plan is to start by grabbing everyday household items first.

真魚(まお):
「それから食品(しょくひん)へ」
“Then move on to food.”
「ただし2人きりなので欲張(よくば)り禁止(きんし)」
“But since it's just the two of us, no hoarding allowed!”
「硬(かた)く重(おも)いものからカゴに入(い)れていく素早(すばや)く!!」
“We'll fill the basket as we go, starting with the hard, heavy stuff. Fast!!”
基(ひろ):
「了解(りょうかい) 了解(りょうかい)」
“Roger that.”
View Full Example

Mao lays out the plan for a sale with a per-customer limit. 入(い)れていく is “put things in one after another”, starting with the hard, heavy items. The いく here isn’t about moving away. 〜ていく moves the action forward step by step.

Casual Forms like てく and てった

In casual speech, 〜ていく loses its い:

Full formCasual formExample
〜ていく〜てく持(も)ってく
〜ていった〜てった持(も)ってった
〜ていって〜てって持(も)ってって
〜ていけ〜てけ出(で)てけ
〜ていこう〜てこう持(も)ってこう

These are easy to mix up with similar forms. 持(も)ってって is “take it with you”, 持(も)ってきて is “bring it”, and 持(も)ってて, from 持(も)っていて, is “hold onto it”. 持(も)ってこう is “let’s take it”, while “let’s bring it” is 持(も)ってこよう.

くる doesn’t shorten like this. 持(も)ってくんな, “don’t bring it”, is 持(も)ってくるな with るな shortened, but 〜てくんない is usually 〜てくれない, “won’t you ~ for me?”

Example 1 of 2: Sell-by date with 期限
Example 1 of 2
Manga panel from 三ツ星カラーズ showing example of Sell-by date with 期限.
三ツ星カラーズ » Volume 2 » Page 102

The confectionery shop owner is out shopping when the trio Colors appears.

おかし屋(や):
「カラーズちゃんあとでうち寄(よ)って期限(きげん)近(ちか)いおかし持(も)ってってよ」
“Colors, stop by my place later and take some of these snacks that are near their sell-by date.”
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The candy-shop owner runs into the Colors while out shopping. 持(も)っていって, “take with you”, shortens to 持(も)ってって. あとでうち寄(よ)って asks them to stop by her shop later to pick them up.

Example 2 of 2: A preference for pudding with 嗜好
Example 2 of 2
Manga panel from よつばと! showing example of A preference for pudding with 嗜好.
よつばと! » Volume 1 » Page 13

After Yousuke finishes moving his belongings into his new home with the help of his friend Jumbo, Jumbo offers to pick up some gifts for Yousuke to give his new neighbors when he goes around the neighborhood to introduce himself.

葉介(ようすけ):
「変(へん)なもん持(も)ってくんなよ」
“Don't bring back anything weird.”
ジャンボ:
「俺(おれ)はプリンが好(す)きなんだ」
“I happen to like pudding.”
葉介(ようすけ):
「いや おまえの嗜好(しこう)はいい」
“Never mind what you like.”
View Full Example

Jumbo offers to pick up gifts for Yousuke’s new neighbors, and Yousuke tells him 持(も)ってくんな. It’s 持(も)ってくるな, “don’t bring”, with るな shortened to んな. The てく here is the start of てくる, not a shortened ていく.

Further Reading

Related Grammar

Supplemental Examples

Try finding this grammar in the following examples: