YOU SAID:
There was once someone who believed that.
INTO JAPANESE
そう信じていた人がいた。
BACK INTO ENGLISH
There were people who believed that.
INTO JAPANESE
そう信じていた人もいました。
BACK INTO ENGLISH
Some believed so.
INTO JAPANESE
そう信じている人もいました。
BACK INTO ENGLISH
Some believed so.
You've done this before, haven't you.