YOU SAID:
私はあなたを食べるよ
INTO JAPANESE
私はあなたを食べるよ
BACK INTO ENGLISH
I'll eat you.
INTO JAPANESE
食べてやる
BACK INTO ENGLISH
I'm going to eat you.
INTO JAPANESE
食べてやる
BACK INTO ENGLISH
I'm going to eat you.
That didn't even make that much sense in English.