YOU SAID:
What makes you so sure?
INTO JAPANESE
何があなたをそんなに確信させるのですか?
BACK INTO ENGLISH
what makes you so convinced?
INTO JAPANESE
何があなたをそんなに納得させますか?
BACK INTO ENGLISH
what convinces you so much?
INTO JAPANESE
何があなたをそんなに納得させますか?
BACK INTO ENGLISH
what convinces you so much?
That didn't even make that much sense in English.