just as, the moment that

Beginner

15-20 min

very common

Expert Reviewed

Explanation

Indicates something happening immediately after.

[Verb た form] + とたん（に）

ドアを開けたとたん、猫が飛び出した。

Doa wo aketa totan, neko ga tobidashita.

The moment I opened the door, the cat jumped out.

電話を切ったとたんに、また鳴った。

Denwa wo kitta totan ni, mata natta.

Just as I hung up, it rang again.

Second event is usually unexpected.

～かと思うと/かと思ったら

just when I thought, no sooner than

～に違いない

must be ~, no doubt that ~, undoubtedly

～に関して/関する

regarding ~, concerning ~, about ~

～について/つい

about ~, concerning ~

～に伴って/伴い/伴う

along with ~, as ~ (changes)

Result is often surprising.

JLPTBooks Editorial Team

Japanese Language Education Specialists

Last updated: Jan 2

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