YOU SAID:

what was there once before, is now gone.

INTO JAPANESE

以前はあったものが、今はなくなっています。

BACK INTO ENGLISH

What used to be is now gone.

INTO JAPANESE

以前はなくなっていました。

BACK INTO ENGLISH

It was gone before.

INTO JAPANESE

以前からだった

BACK INTO ENGLISH

It was before.

INTO JAPANESE

以前からだった

BACK INTO ENGLISH

It was before.