YOU SAID:
I have a cat that likes grapes.
INTO JAPANESE
私はぶどうが好きな猫を飼ってをいます。
BACK INTO ENGLISH
I have a cat like grapes are.
INTO JAPANESE
私は、ブドウのような猫を飼ってをいます。
BACK INTO ENGLISH
I have a cat like grapes are.
That didn't even make that much sense in English.