YOU SAID:

I wouldn't do that if I were you

INTO JAPANESE

私ならそれをしません。

BACK INTO ENGLISH

I would not do that.

INTO JAPANESE

私はそんなことはしないでしょう。

BACK INTO ENGLISH

I wouldn't do that.

INTO JAPANESE

私はそれをしません。

BACK INTO ENGLISH

I will do it.

INTO JAPANESE

私はそれを行います。

BACK INTO ENGLISH

I will do it.