出典:Wiktionary
Although must and have to are synonymous, there is a distinction in English between must not (indicating proscription) and not have to (indicating a lack of necessity).
must not
すべきではない
something that should not be done
じゃないと
いりません
いりません
しません
義務付けられない
It is not so―It is otherwise―That is not the case―(相手の言葉次第で)―No, I am not―No, you are not―No, he is not.
せかさないで
してない
してない
もし違うなら
〜ではない