YOU SAID:
I know you don't really know man like that
INTO JAPANESE
私はあなたが本当にそのような人を知らないことを知っています
BACK INTO ENGLISH
I know you really don't know such a person
INTO JAPANESE
私はあなたが本当にそのような人を知らないことを知っています
BACK INTO ENGLISH
I know you really don't know such a person
That didn't even make that much sense in English.