JLPT N4 grammar
〜うちに — Meaning & Examples
"While it lasts" — do it before the situation changes. 温かいうちに食べて = eat while it is still warm. 〜ないうちに = before it happens.
〜うちに — "While It Lasts"
〜うちに also means "while," but it carries a warning: do it before the situation changes.
〜うちに = while the condition still holds (and it won't last)
温かいうちに、食べてください。
= Please eat it while it is still warm. (before it goes cold)
若いうちに、たくさん旅行したほうがいい。
= You should travel a lot while you are young.
明るいうちに、帰りましょう。
= Let's go home while it is still light.
〜ないうちに = before it becomes the case
雨が降らないうちに、帰りましょう。
= Let's go home before it rains.
忘れないうちに、メモしておきます。
= I will make a note before I forget.
間に vs うちに — the nuance:
留守の間に荷物が届いた。 — Neutral: it happened during that window.
明るいうちに帰ろう。 — Urgent: the window is closing! ⏳
間に just states the timing. うちに adds "so take your chance."
Formation: い-adj + うちに / な-adj + な + うちに / noun + の + うちに / 〜ている + うちに
Practice questions
Try these 3 questions on 〜うちに. Pick an answer in your head, then open “Show answer”.
1. 温かいうちに食べてください means?
- Please eat it because it is warm
- Please eat it while it is still warm
- Please warm it before eating
- Please eat it after it warms up
Show answer
Answer: Please eat it while it is still warm
うちに = while the condition still holds, with urgency — eat it before it goes cold.
2. 雨が降らないうちに、帰りましょう means?
- Let's go home because it is raining
- Let's go home while it rains
- Let's go home after the rain stops
- Let's go home before it rains
Show answer
Answer: Let's go home before it rains
〜ないうちに = before it becomes the case. 降らないうちに = before it starts raining.
3. The difference between 間に and うちに is?
- 間に is formal, うちに is casual
- 間に states timing neutrally; うちに adds "take your chance before it changes"
- They are identical
- うちに only works with verbs
Show answer
Answer: 間に states timing neutrally; うちに adds "take your chance before it changes"
間に is a neutral time window. うちに carries urgency — the window is closing, so act now.
Practise 〜うちに in the free app
This point is part of the “⏱️ Timing — 〜ところだ・〜間に・〜うちに” lesson in A Star Japanese. Study it with examples, a quiz, flashcards and timed JLPT N4 mock exams. Free on iPhone and Android.
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Related N4 grammar points
From the same lesson: ⏱️ Timing — 〜ところだ・〜間に・〜うちに
Frequently asked questions
What does 〜うちに mean?
"While it lasts" — do it before the situation changes. 温かいうちに食べて = eat while it is still warm. 〜ないうちに = before it happens.
Is 〜うちに on the JLPT N4 test?
〜うちに is taught in the JLPT N4 grammar course in A Star Japanese (lesson “⏱️ Timing — 〜ところだ・〜間に・〜うちに”), so it is a pattern learners at this level are expected to recognise. The JLPT does not publish an official grammar list, so treat this as a study guide rather than an official requirement.
How can I practise 〜うちに?
Open the “⏱️ Timing — 〜ところだ・〜間に・〜うちに” lesson in the free A Star Japanese app for iPhone and Android. It has examples, a quiz after every lesson, flashcards with spaced repetition and timed JLPT N4 mock exams, with no ads.