なくちゃいけない

無くちゃいけない

cannot do without something; indispensable; absolutely necessary

N5Common wordExpression
Expression
cannot do without somethingindispensableabsolutely necessary
Expression
have to do

Example Sentences

明日忘れずにその(ほん)を買わなくちゃいけない。

I must remember to buy that book tomorrow.