during ~, throughout ~, all over ~

Beginner

15-20 min

very common

Expert Reviewed

Explanation

Indicates duration or scope.

[Time/Place noun] + 中(じゅう/ちゅう)

一日中勉強していました。

Ichinichijuu benkyou shite imashita.

I studied all day long.

会議中は携帯電話を切ってください。

Kaigichuu wa keitai denwa wo kitte kudasai.

Please turn off your cell phone during the meeting.

じゅう = throughout, ちゅう = during/in the middle of.

～てもいいです

may do ~, it's okay to do ~

～てはいけません

must not do ~, not allowed to do ~

～なければなりません

must do ~, have to do ~

～なくてもいいです

don't have to do ~, don't need to do ~

Reading changes meaning: じゅう vs ちゅう.

JLPTBooks Editorial Team

Japanese Language Education Specialists

Last updated: Jan 2

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