YOU SAID:

my favorite animal are cats and i don't like dogs

INTO JAPANESE

私の好きな動物は猫で、犬は好きではありません

BACK INTO ENGLISH

My favorite animal is cats, I don't like dogs

INTO JAPANESE

私の好きな動物は猫です、私は犬が好きではありません

BACK INTO ENGLISH

My favorite animal is a cat, I don't like dogs

INTO JAPANESE

私の好きな動物は猫です、私は犬が好きではありません

BACK INTO ENGLISH

My favorite animal is a cat, I don't like dogs