Leaving something as-is with 〜っぱなし
Grammar: Condition » 〜っぱなし
Add っぱなし to a verb stem when an action continues unchecked or leaves something in the resulting state. It usually criticizes the person responsible: ドアを開けっぱなし “leave the door open”. The form comes from 放
Usage Notes
〜っぱなし criticizes an unattended state. The focus stays on the state after the action. Blue tries to sneak into Masaki’s cottage, but the door is locked. Yotsuba invites her neighbors over for coffee. She first gives the three a tour of the house, leading up to the kitchen. Chi’s mother comes into the room.Further Reading
Examples
Leaving a door unlocked with 〜っぱなし

Leaving the futon out with 〜っぱなし

Leaving toys scattered about with 〜っぱなし
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