か〜ないかのうちに

No Sooner than

Level 3Sounds Like ka~naikanouchini

The pattern [Verb A] か [Verb A-nai] かのうちに is used to express that [Action B] happened immediately after—or even during the final moments of—[Action A]. It translates to 'no sooner than' or 'just as'.

How It Works

1. Formation
The pattern is strictly formed by repeating the same verb:

  • [Verb Dictionary Form] + か + [Verb ない-form] + かのうちに
  • [Verb た-form] + か + [Verb ない-form] + かのうちに

Example: 終わる（おわる）か終わらないかのうちに (No sooner than it finished...)

2. Nuance and Usage
This expression is primarily used in formal writing or literary contexts (novels, reports). It suggests a sense of breathlessness or urgency. Unlike other 'as soon as' patterns, this one allows for the second action to start while the first is still technically concluding. It is often used with verbs that indicate a clear point of change, such as 'arriving,' 'opening,' 'finishing,' or 'sitting.'

3. Constraints
The second clause (the result) must be a factual statement of something that happened. You cannot use this pattern for commands, requests, or the speaker's future intentions. For example, you cannot say 'Call me as soon as you arrive' using this pattern.

Examples (4)

  1. ベルが鳴るか鳴らないかのうちに、生徒たちは教室を飛び出した。

    No sooner had the bell started ringing than the students dashed out of the classroom.

    Word by Word: Bell ring or not ring within, students classroom jumped out.

    This shows the students reacted so quickly that the bell might not have even finished its first ring.

  2. 彼はベッドに横になるかならないかのうちに、ぐっすり眠ってしまった。

    He fell fast asleep almost the instant his body hit the bed.

    Word by Word: He bed on lie down or not lie down within, soundly slept.

    The use of 眠ってしまった emphasizes the sudden and complete transition into sleep.

  3. デパートのドアが開くか開かないかのうちに、待っていた客がなだれ込んできた。

    Just as the department store doors were opening, the waiting customers came surging in.

    Word by Word: Department store doors open or not open within, waiting customers surged in.

    This implies the customers started moving in while the doors were still in the process of sliding open.

  4. 「さよなら」と言ったか言わないかのうちに、彼女は走り去った。

    She ran away almost before she had finished saying 'goodbye'.

    Word by Word: 'Goodbye' said or not say within, she ran away.

    This example uses the past tense (言った) for the first verb, which is a common variation in narrative Japanese.

Common Mistakes

  • Using different verbs for the affirmative and negative parts.

    ✕ 食べるか飲まないかのうちに...
    ○ 食べるか食べないかのうちに...

    The pattern requires the exact same verb to be repeated in both the affirmative and negative forms.

  • Using the pattern for commands or requests.

    ✕ 家に着くか着かないかのうちに電話してください。
    ○ 家に着いたらすぐに電話してください。

    か〜ないかのうちに is used to describe objective facts that occurred, not to give instructions or express future desires. Use たらすぐに for requests.

How It Connects

Tap a pattern to see what it builds on and what it leads to.

か〜ないかのうちにLevel 3No Sooner than

Learn This First

To understand 'か〜ないかのうちに', you need to know how to conjugate verbs into the plain negative (ない) form. It is also helpful to understand the basic 'うちに' (while/during) pattern and how the particle 'か' functions to express alternatives or uncertainty, as this pattern literally translates to 'in the moment of whether [the action] happened or didn't happen'.

Words in This Pattern

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