YOU SAID:
my sisters name is susan and i am on fire.
INTO JAPANESE
私の姉妹の名前はスーザンで、私は燃えています。
BACK INTO ENGLISH
My sister's name is Susan and I am burning.
INTO JAPANESE
妹の名前はスーザンで、燃えています。
BACK INTO ENGLISH
My sister's name is Susan, burning.
INTO JAPANESE
妹の名前はスーザン、燃えています。
BACK INTO ENGLISH
My sister's name is Susan, burning.
That didn't even make that much sense in English.