YOU SAID:
James doesn't know his harry potter wands
INTO JAPANESE
ジェームズは彼のハリーポッターの杖を知りません
BACK INTO ENGLISH
James doesn't know his Harry Potter wand
INTO JAPANESE
ジェームズは彼のハリーポッターの杖を知りません
BACK INTO ENGLISH
James doesn't know his Harry Potter wand
You've done this before, haven't you.