YOU SAID:

This is not the way it musn't used to be

INTO JAPANESE

これはそれをしない方法はいけません使用するには

BACK INTO ENGLISH

This should not be a way not to do it

INTO JAPANESE

これはそれをしない方法はなりません

BACK INTO ENGLISH

This will not be a way not to do it

INTO JAPANESE

これはそれをしない方法ではありません

BACK INTO ENGLISH

This is not a way not to do it

INTO JAPANESE

これはやり方ではない

BACK INTO ENGLISH

This is not the way

INTO JAPANESE

これは間違ってる

BACK INTO ENGLISH

This is a mistake.

INTO JAPANESE

これは　間違いだ

BACK INTO ENGLISH

This is a mistake.