🧠 What Does ～が早いか Mean?
～が早いかの意味とは？
The Japanese grammar pattern ～が早いか is used to express that one action happens immediately after another. It emphasizes the speed or urgency of the second action.
日本語の文法「～が早いか」は、ある動作が終わると同時に、次の動作がすぐに起こることを表す表現です。特に、スピード感や緊急性を強調したいときに使われます。
🧩 Grammar Structure | 文法構造
[Verb (dictionary form)] + が早いか
– This structure is used mainly in written or literary Japanese.
– It is not commonly used in casual conversation.
【動詞辞書形】＋が早いか
– 主に書き言葉や文語的な表現に使われます。
– 日常会話ではあまり使われません。
✅ Key Features | 特徴まとめ
| Feature | Description (EN) | 説明（日本語） |
|---|---|---|
| Emphasizes speed | Action B happens instantly after Action A | Aの後すぐにBが起こる |
| Often used in narratives | Common in novels, news, or formal writing | 小説やニュース、文章語でよく使われる |
| Not used for habits | Can’t describe repeated or habitual actions | 習慣や繰り返しの行動には使えない |
🔎 Example Sentences | 例文と解説（15個）
- 📘 授業が終わるが早いか、生徒たちは教室を飛び出していった。
📙 As soon as the class ended, the students rushed out of the classroom. - 📘 ベルが鳴るが早いか、彼は席を立って廊下に向かった。
📙 The moment the bell rang, he stood up and walked into the hallway. - 📘 雨が降り出すが早いか、人々は急いで傘を開いた。
📙 As soon as it started to rain, people hurriedly opened their umbrellas. - 📘 列車が止まるが早いか、乗客はドアの前に殺到した。
📙 As soon as the train stopped, passengers rushed to the door. - 📘 彼が「行こう」と言うが早いか、友達はもう歩き出していた。
📙 As soon as he said “Let’s go,” his friend had already started walking. - 📘 目覚ましが鳴るが早いか、彼は布団から飛び起きた。
📙 As soon as the alarm rang, he jumped out of bed. - 📘 ドアが開くが早いか、子どもたちは一斉に外へ走り出した。
📙 As soon as the door opened, the children rushed outside. - 📘 信号が青に変わるが早いか、車が一斉に走り出した。
📙 As soon as the light turned green, cars started moving at once. - 📘 社長が話し始めるが早いか、社員たちはメモを取り出した。
📙 As soon as the president started talking, the employees took out their notebooks. - 📘 彼が部屋に入るが早いか、皆が立ち上がって挨拶した。
📙 As soon as he entered the room, everyone stood up and greeted him. - 📘 アナウンスが流れるが早いか、乗客が一斉に降り始めた。
📙 As soon as the announcement played, passengers began to disembark. - 📘 映画が終わるが早いか、観客は拍手を始めた。
📙 As soon as the movie ended, the audience started applauding. - 📘 店が開くが早いか、客が列を作って入っていった。
📙 As soon as the shop opened, customers lined up and went in. - 📘 赤ん坊が泣き出すが早いか、母親はすぐに抱き上げた。
📙 As soon as the baby started crying, the mother picked them up immediately. - 📘 彼がテレビをつけるが早いか、母は「勉強しなさい！」と怒った。
📙 As soon as he turned on the TV, his mom yelled, “Go study!”
🆚 Comparison: ～が早いか vs. ～とたんに
～とたんに との違い
| Grammar | Focus | Example Use |
|---|---|---|
| ～が早いか | Emphasizes speed and surprise | Immediate reaction or physical movement |
| ～とたんに | Describes timing without emphasis | Simply says A → then B occurred |
🔹 ～が早いか has a stronger emotional or narrative impact than ～とたんに.
📝 Summary | まとめ
- ～が早いか is used to show that Action B happens the moment Action A ends.
- It emphasizes quickness, urgency, or even surprise.
- Use it in written Japanese or formal descriptions.
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