YOU SAID:
i knew this girl named becky
INTO JAPANESE
私はベッキーという名前のこの女の子を知っていた
BACK INTO ENGLISH
I knew this girl named Becky
INTO JAPANESE
私はベッキーという名前のこの女の子を知っていました
BACK INTO ENGLISH
I knew this girl named Becky
You've done this before, haven't you.