YOU SAID:

did I know about it before,

INTO JAPANESE

私はそれについて前に、知った

BACK INTO ENGLISH

I knew about it ago,

INTO JAPANESE

前に、それを知ってください。

BACK INTO ENGLISH

Ago your know it.

INTO JAPANESE

前にそれを知っています。

BACK INTO ENGLISH

Ago knowing it.

INTO JAPANESE

前にそれを知っています。

BACK INTO ENGLISH

Ago knowing it.