〜なくちゃ
〜なくちゃ means have to; gotta (casual). It is a JLPT N5 grammar point. This is a short spoken form of 〜なくてはいけない, used casually to mean 'have to.' Even when いけない is omitted, the sense of obligation remains.
Japanese sources describe it as 「しなくては（話し言葉）」.
〜なくちゃ examples
もう帰らなくちゃ。
I have to go home now.
宿題をしなくちゃ。
I have to do my homework.
〜なくちゃ exercises
Pick what belongs in the parentheses. The answer is marked below.
早く寝（ ）。
- なくちゃ ✓
- なくてもいい
- ないで
- てもいい
I have to sleep early.
明日、学校へ行か（ ）。
- ないで
- なくてもいい
- ないでしょう
- なくちゃ ✓
I have to go to school tomorrow.
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