JLPT N4

～なくてもいい

Don't have to, don't need to

Structure

Verb (ない-form, drop い) + くてもいい

This grammar is used to express that an action is not necessary or that one is permitted not to do something. It gives a sense of relief or option.

今日は学校に行かなくてもいいです。

You don't have to go to school today.

Confusing it with ～てはいけない (must not do) or ～なければならない (must do).

Break it down: ない (negative) + てもいい (even if X, it's good). So, 'even if you don't do X, it's fine'.

Import an article and tap any sentence using it. The explanation comes back about the sentence in front of you, not a textbook example.