JLPT N3
V-なきゃ
Must ~. This is the casual equivalent of V- なきゃいけない. いけない is left off in casual conversation where it is understood.
Example Sentences
レポートがあるから本を読まなきゃ。
I must read the book because I have a report.
明日は試験だから勉強しなきゃ。
I have a test tomorrow, so I must study.