〜たとたん（に）: This phrase means "the moment" or "as soon as." It shows that something else happened right after the first thing. Sometimes, it shows surprise.

〜たとたん（に）

This phrase means "the moment" or "as soon as." It shows that something else happened right after the first thing. Sometimes, it shows surprise.

N2 KMT6NeutralStandardAdverbial ConstructionMixedImmediately Upon ActionGrammar

Verb [た-form] + とたんにPrimary

Verb [た-form] + とたん

This phrase means "the moment" or "as soon as." It shows that something else happened right after the first thing. Sometimes, it shows surprise.

立ち上がったとたん、めまいがした。

The moment I stood up, I felt dizzy.

NeutralPastAffirmativeMid SentenceDeclarativeMedicine & Health Daily Life

ドアを開けたとたん、猫が飛び出してきた。

As soon as I opened the door, the cat darted out.

NeutralPastAffirmativeMid SentenceDeclarativeAnimals Home & Housing

彼の顔を見たとたん、言おうとしていたことを忘れてしまった。

The moment I saw his face, I completely forgot what I was going to say.

NeutralPastAffirmativeMid SentenceDeclarativeEmotions & Psychology Family & Relationships

セールが始まったとたん、ウェブサイトにアクセスできなくなった。

The moment the sale started, the website became inaccessible.

NeutralPastNegativeMid SentenceDeclarativeInternet & Social Media Business & Finance

家を出たとたん、大雨が降り出しました。

The moment I left the house, it started pouring with rain.

PolitePastAffirmativeSentence EndingDeclarativeWeather & Geography Daily Life

This is like 'ya ina ya' and 'ga hayai ka'. But it is used more often in talking. It is not for books. It is different from 'shidai'. 'Shidai' is for things you plan to do. This is for things that happen suddenly. You do not expect them.

Don't use this when you choose to do something. For example, you cannot say "The moment I left home, I decided to go to school."

Use this when you want to tell a story. It shows one thing happened right after another. This often makes the story exciting or surprising.

Contrasts with(2)

〜次第

This means "as soon as" or "once." You use it when one thing will happen right after another. It is for formal talks or business plans.

〜そばから

This means that right after you do something, something else happens. It often feels like the second thing makes the first thing useless.

More formal alternatives(1)

〜そばから

This means that right after you do something, something else happens. It often feels like the second thing makes the first thing useless.

Less formal alternatives(5)

〜か〜ないかのうちに

This means a second thing happens right after a first thing. It shows almost no time passed between them. It can feel sudden or surprising.

〜次第

This means "as soon as" or "once." You use it when one thing will happen right after another. It is for formal talks or business plans.

〜や否や（やいなや）

This means that something happened right after something else. It shows things happened very, very fast.

〜なり

This grammar shows that one thing happens right after another. The second thing is often a surprise. The same person usually does both actions.

〜が早いか

This means something happens right after another thing. It is like saying "as soon as" or "the moment that."

た形

This shows an action finished in the past. It also shows something that was true before now.

〜と

This means that when you do A, B always happens. It is like saying "if you do A, then B happens" or "when you do A, you find B".

〜たところだ

This means something just finished. It shows the action ended a moment ago. It focuses on that exact time.

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Dictionary

〜たとたん（に）

This phrase means "the moment" or "as soon as." It shows that something else happened right after the first thing. Sometimes, it shows surprise.

N2 KMT6NeutralStandardAdverbial ConstructionMixedImmediately Upon ActionGrammar

Verb [た-form] + とたんにPrimary

Verb [た-form] + とたん

This phrase means "the moment" or "as soon as." It shows that something else happened right after the first thing. Sometimes, it shows surprise.

立ち上がったとたん、めまいがした。

The moment I stood up, I felt dizzy.

NeutralPastAffirmativeMid SentenceDeclarativeMedicine & Health Daily Life

ドアを開けたとたん、猫が飛び出してきた。

As soon as I opened the door, the cat darted out.

NeutralPastAffirmativeMid SentenceDeclarativeAnimals Home & Housing

彼の顔を見たとたん、言おうとしていたことを忘れてしまった。

The moment I saw his face, I completely forgot what I was going to say.

NeutralPastAffirmativeMid SentenceDeclarativeEmotions & Psychology Family & Relationships

セールが始まったとたん、ウェブサイトにアクセスできなくなった。

The moment the sale started, the website became inaccessible.

NeutralPastNegativeMid SentenceDeclarativeInternet & Social Media Business & Finance

家を出たとたん、大雨が降り出しました。

The moment I left the house, it started pouring with rain.

PolitePastAffirmativeSentence EndingDeclarativeWeather & Geography Daily Life

Don't use this when you choose to do something. For example, you cannot say "The moment I left home, I decided to go to school."

Use this when you want to tell a story. It shows one thing happened right after another. This often makes the story exciting or surprising.

Contrasts with(2)

〜次第

This means "as soon as" or "once." You use it when one thing will happen right after another. It is for formal talks or business plans.

〜そばから

This means that right after you do something, something else happens. It often feels like the second thing makes the first thing useless.

More formal alternatives(1)

〜そばから

This means that right after you do something, something else happens. It often feels like the second thing makes the first thing useless.

Less formal alternatives(5)

〜か〜ないかのうちに

This means a second thing happens right after a first thing. It shows almost no time passed between them. It can feel sudden or surprising.

〜次第

This means "as soon as" or "once." You use it when one thing will happen right after another. It is for formal talks or business plans.

〜や否や（やいなや）

This means that something happened right after something else. It shows things happened very, very fast.

〜なり

This grammar shows that one thing happens right after another. The second thing is often a surprise. The same person usually does both actions.

〜が早いか

This means something happens right after another thing. It is like saying "as soon as" or "the moment that."

た形

This shows an action finished in the past. It also shows something that was true before now.

〜と

This means that when you do A, B always happens. It is like saying "if you do A, then B happens" or "when you do A, you find B".

〜たところだ

This means something just finished. It shows the action ended a moment ago. It focuses on that exact time.

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〜たとたん（に）

Patterns2

Meaning

Examples5

Contrasts1

Restrictions1

Discourse Function1

Compare with8

Contrasts with(2)

More formal alternatives(1)

Less formal alternatives(5)

Prerequisites3

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〜たとたん（に）

Patterns2

Meaning

Examples5

Contrasts1

Restrictions1

Discourse Function1

Compare with8

Contrasts with(2)

More formal alternatives(1)

Less formal alternatives(5)

Prerequisites3

Track your mastery