This means you did something and left it that way. It often shows you were careless or did not finish properly.
Verb [stem] + っぱなしPrimary
This means you did something and left it that way. It often shows you were careless or did not finish properly.
電気をつけっぱなしで寝てしまった。
I fell asleep with the lights left on.
ドアを開けっ放しにしないでください。
Please don't leave the door open.
夫は服を脱ぎっぱなしにするから困る。
It's a problem because my husband just leaves his clothes lying around after taking them off.
やりっぱなしの仕事がまだたくさんある。
There's still a lot of half-finished work.
昨日から立ちっぱなしだったので、足が痛い。
My legs hurt because I've been standing continuously since yesterday.
This grammar often shows something was left on or open. It means someone forgot to turn it off or close it. It feels like a small complaint.
This is different from "Verb [た-form] + まま." That just says something is still in a certain state. It does not judge it. "〜っぱなし" means someone was careless. It is also different from "〜っきり." That means nothing has happened since an action. It focuses on what did not happen next.
Don't use this when an action ends quickly. For example, you cannot say "会うっぱなし" (met and left it).
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