YOU SAID:
Heard about coffee yet
INTO JAPANESE
まだコーヒーについて聞いたことがある
BACK INTO ENGLISH
Have you still heard about coffee
INTO JAPANESE
あなたはまだコーヒーについて聞いたことがありますか?
BACK INTO ENGLISH
Have you heard about coffee yet?
INTO JAPANESE
コーヒーについて聞いたことがありますか?
BACK INTO ENGLISH
Have you ever heard about coffee?
INTO JAPANESE
コーヒーについて聞いたことがありますか?
BACK INTO ENGLISH
Have you ever heard about coffee?
That didn't even make that much sense in English.