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道Nihongo Path

Lesson 103 of 171

〜が早いか

ga hayaika

By Nihongo PathUpdated

Meaning

as soon as …; no sooner … than …

〜が早いか means "the instant X happened, Y happened": ベルが鳴るが早いか、教室を飛び出した. Literally "which was earlier, X or Y?", i.e. they were almost simultaneous. Y is a quick, deliberate action, usually by the same person, in the past.

Formal written Japanese: narrative, news, sports reporting. It creates a vivid image of someone acting the instant something happens. Y cannot be a command, intention or natural phenomenon; it is an action someone takes.

Formation

V = verb, N = noun, A = adjective.

  • Vる / Vた + が早いか、Vた
  • Y = a quick deliberate action (飛び出す・駆けつける・食べ始める)
  • Same subject in both clauses is typical

Visual diagram

"The moment…" expressions
AspectFormY clauseNuance
〜が早いかVる/Vた + が早いかquick deliberate actionalmost simultaneous
〜や否やVる + や否やany sudden eventno gap at all
〜なりVる + なりunexpected action, same subjectimmediately
〜たとたん(に)Vた + とたんsurprising resultneutral register

Natural examples

  1. 彼はベルが鳴るが早いか、教室を飛び出した。

    かれはベルがなるがはやいか、きょうしつをとびだした。

    No sooner had the bell rung than he dashed out of the classroom.

    The bell rings, he dashes out: a quick deliberate action.

  2. 横になるが早いか、いびきをかき始めた。

    よこになるがはやいか、いびきをかきはじめた。

    The moment he lay down, he started snoring.

    Lying down and snoring: a rapid sequence.

  3. その知らせを聞くが早いか、母は病院へ駆けつけた。

    そのしらせをきくがはやいか、はははびょういんへかけつけた。

    As soon as she heard the news, my mother rushed to the hospital.

    Hearing the news, the mother rushes: 駆けつけた.

  4. 彼は席に着くが早いか、弁当を食べ始めた。

    かれはせきにつくがはやいか、べんとうをたべはじめた。

    The moment he sat down, he started eating his lunch.

    Same subject, quick action.

  5. 開店のドアが開いたが早いか、客たちは売り場へ走った。

    かいてんのドアがひらいたがはやいか、きゃくたちはうりばへはしった。

    The instant the shop door opened, the customers ran to the sales floor.

    Vた + が早いか is also possible.

Similar grammar and the difference

Common mistakes

  • ✗
    ベルが鳴るが早いか、教室を出なさい。
    ✓
    ベルが鳴ったらすぐ、教室を出なさい。
    Why
    Y cannot be a command.
  • ✗
    雨が降るが早いか、道が濡れた。
    ✓
    雨が降るや否や、道が濡れた。
    Why
    A natural result is not a deliberate action; use や否や or とたん.
  • ✗
    鳴ったの早いか
    ✓
    鳴ったが早いか
    Why
    The particle is が.

Y is typically energetic: 飛び出す・駆け出す・飛びつく・食べ始める. Both the dictionary form and the past form are accepted before が早いか. It is a set phrase; 早い does not change form.

JLPT N1 tips

On the exam

  • A trigger verb + blank + a quick deliberate past action → が早いか.
  • If the second clause is a reaction or event rather than a deliberate action, や否や or とたん is more likely.
  • Eliminate options if Y is a command, intention or conjecture.

Frequently asked questions

What does 〜が早いか mean?

as soon as …; no sooner … than …. 〜が早いか means "the instant X happened, Y happened": ベルが鳴るが早いか、教室を飛び出した. Literally "which was earlier, X or Y?", i.e. they were almost simultaneous. Y is a quick, deliberate action, usually by the same person, in the past.

How do you form 〜が早いか?

Vる / Vた + が早いか、Vた / Y = a quick deliberate action (飛び出す・駆けつける・食べ始める) / Same subject in both clauses is typical. V = verb, N = noun, A = adjective.

When is 〜が早いか used?

Formal written Japanese: narrative, news, sports reporting. It creates a vivid image of someone acting the instant something happens. Y cannot be a command, intention or natural phenomenon; it is an action someone takes.

What is the difference between 〜が早いか and 〜や否や?

Almost the same timing, but Y can be any sudden event, including reactions and natural results.

What is the difference between 〜が早いか and 〜なり?

Same subject and an unexpected action; slightly more narrative.

What is a common mistake with 〜が早いか?

Wrong: ベルが鳴るが早いか、教室を出なさい。 Right: ベルが鳴ったらすぐ、教室を出なさい。 Y cannot be a command.

Quick check

1 / 5Multiple choiceDifficulty 4 of 5

彼は終業のチャイムが鳴る(  )、会社を飛び出した。