っぱなし

っぱなし means left on; left as is. It is a JLPT N3 grammar pattern used to show something is left in the same state, often carelessly.

This grammar point often appears in casual to neutral Japanese. If you want to show something is left in the same state, often carelessly, っぱなし is a useful pattern to learn.

What does っぱなし mean?

Use っぱなし when you want to show something is left in the same state, often carelessly.

Natural translations include:

• left on; left as is
• left on
• left on / left as is

How to form っぱなし

Verbます-stem + っぱなし

Examples of the pattern:

• 開けっぱなし
• つけっぱなし
• 置きっぱなし

When is っぱなし used?

Use っぱなし in situations like:

• forgetting to turn something off
• leaving things open or unattended
• criticizing careless habits

Tone and register:

• casual to neutral
• Common in JLPT reading, grammar questions, and natural Japanese sentences

っぱなし example sentences

• 窓を開けっぱなしにしないでください。 — Please do not leave the window open.
• 電気がつけっぱなしだった。 — The light was left on.
• 彼は本を机の上に置きっぱなしにした。 — He left the book sitting on the desk.
• 水を出しっぱなしにしてはいけません。 — You must not leave the water running.
• ドアが開けっぱなしですよ。 — The door has been left open.

Nuance of っぱなし

The key nuance is a state continues because someone left it that way.

This matters because っぱなし does more than translate one English phrase. It shows how the speaker connects ideas, evaluates a situation, or frames the sentence for the listener.

For example:

• In context, it sounds natural when the surrounding sentence supports the nuance.
• Compared with まま, it has a different focus and level of formality.

っぱなし vs まま

Both っぱなし and まま can appear in related situations, but they are different.

っぱなし:

• means left on; left as is
• fits the specific N3 pattern and nuance explained above

まま:

• まま means “as is”; っぱなし often suggests carelessness or neglect

Quick contrast examples:

• Target: 窓を開けっぱなしにしないでください。 — Please do not leave the window open.
• Compare: Try replacing it with まま and check whether the nuance still matches.

Common mistakes with っぱなし

Watch out for these mistakes:

• Using dictionary form before っぱなし
• Using it for intentional continuous action without “left as is” nuance
• Forgetting にする / だ patterns after it

Is っぱなし on the JLPT?

Yes. っぱなし is commonly taught as JLPT N3 grammar.

That means learners should be able to:

• recognize it in reading
• understand its nuance in context
• use it in simple original sentences

Practice questions for っぱなし

Try making your own sentences with these prompts:

• Tell someone not to leave the light on.
• Say the door was left open.
• Say water was left running.

Learning path for っぱなし

To learn っぱなし efficiently, review verb-stem compounds first, then notice whether the pattern stresses completion, excess, continuation, or a result.

1. First, make sure you can form っぱなし without looking at the pattern chart.
2. Next, compare it with まま, 上げる（あげる）・上がる（あがる）. These patterns are close enough that choosing between them helps you understand the nuance.
3. Finally, write sentences about finishing projects, using something up, or actions continuing; then check whether replacing っぱなし with 切る（きる） changes the meaning.

Related grammar to review next

• まま — because it is the closest comparison used in this article.
• 上げる（あげる）・上がる（あがる） — because it is another compound or result-focused pattern for actions.
• 切る（きる） — because it is another compound or result-focused pattern for actions.
• 切れない（きれない） — because it is another compound or result-focused pattern for actions.

Learn っぱなし with Hane

If you want to review っぱなし together with the related patterns above, Hane helps you connect grammar, kanji, and vocabulary in short, focused sessions.

Browse more lessons here:

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