YOU SAID:
knock knock knocking on heavens door
INTO JAPANESE
ノックノックは、天のドアをノック
BACK INTO ENGLISH
Knock knocking knocks on the door of heaven
INTO JAPANESE
ノックノックは、天国のドアをノック
BACK INTO ENGLISH
Knock knocking knocks on the door of heaven
You've done this before, haven't you.