YOU SAID:
My cat is your cat too
INTO JAPANESE
私の猫はあまりにもあなたの猫
BACK INTO ENGLISH
My cat too your cat
INTO JAPANESE
私の猫も、猫
BACK INTO ENGLISH
My cat is a cat
INTO JAPANESE
私の猫は猫
BACK INTO ENGLISH
My cat is a cat.
INTO JAPANESE
私の猫は、猫です。
BACK INTO ENGLISH
My cat is a cat.
That didn't even make that much sense in English.