YOU SAID:
Hey Hannibal, have you heard about this?
INTO JAPANESE
ちょっとハンニバル、これについて聞いたか。
BACK INTO ENGLISH
Hey Hannibal, did you hear about this.
INTO JAPANESE
ちょっとハンニバル、これについて知りました。
BACK INTO ENGLISH
Hey Hannibal, I knew about this.
INTO JAPANESE
ハンニバルねえ、私はこれについて知っていた。
BACK INTO ENGLISH
Hey Hannibal, I knew about this.
You've done this before, haven't you.