YOU SAID:

Haven't you ever heard of knocking?

INTO JAPANESE

ノックなんて聞いたことないの?

BACK INTO ENGLISH

You've never heard of a knock?

INTO JAPANESE

ノックを聞いたことがないのか?

BACK INTO ENGLISH

Haven't you heard of the knock?

INTO JAPANESE

ノックは聞いたことがないの?

BACK INTO ENGLISH

Haven't you heard of the knock?