YOU SAID:
knock knock whos there? doctor. Doctor who
INTO JAPANESE
誰がノック した? 主治医を務める医師.
BACK INTO ENGLISH
Who knocked? Doctor acting as attending physician.
INTO JAPANESE
誰がノックしたの?
BACK INTO ENGLISH
Who knocked?
INTO JAPANESE
誰がノックした?
BACK INTO ENGLISH
Who knocked?
Okay, I get it, you like Translation Party.