YOU SAID:

Nope, haven't done it before.

INTO JAPANESE

いいえ、前にそれをやっていません。

BACK INTO ENGLISH

No, I've not done it before.

INTO JAPANESE

いいえ、私は前にそれをやったことがありません。

BACK INTO ENGLISH

No, I've never done it before.

INTO JAPANESE

こういうの初めて.

BACK INTO ENGLISH

I've never done it before.

INTO JAPANESE

こういうの初めて.

BACK INTO ENGLISH

I've never done it before.