YOU SAID:

Before was was was, was was is. which was was while being is

INTO JAPANESE

以前はだった、だった。だった

BACK INTO ENGLISH

It used to be, was. was

INTO JAPANESE

以前は、そうでした。だった

BACK INTO ENGLISH

Previously, yes. was

INTO JAPANESE

以前は、はい。だった

BACK INTO ENGLISH

Previously, yes. was