YOU SAID:

You don't have to be nasty about it

INTO JAPANESE

あなたはそれについて厄介である必要はありません。

BACK INTO ENGLISH

You do not have to be bothersome about it.

INTO JAPANESE

それについて厄介なことに必要はありません。

BACK INTO ENGLISH

There is no need to bother about that.

INTO JAPANESE

気にする必要はありません。

BACK INTO ENGLISH

'Cause you don't need to be.

INTO JAPANESE

気にする必要はありません

BACK INTO ENGLISH

'Cause you don't need to be.