YOU SAID:
Is this girl I did not know you had a $0 coin.
INTO JAPANESE
この女の子はあなたが$ 0のコインを持っているとは知りませんでしたか。
BACK INTO ENGLISH
Didn't this girl know you have $ 0 coins?
INTO JAPANESE
この女の子はあなたが$ 0のコインを持っていることを知りませんでしたか?
BACK INTO ENGLISH
Didn't this girl know you have $ 0 coins?
That didn't even make that much sense in English.