YOU SAID:

your friends cat hates my cat that hates his cat that hates my cat

INTO JAPANESE

あなたの友人の猫は私の猫を憎む私の猫を憎む私の猫を憎む

BACK INTO ENGLISH

Your friend's cat hate my cat hate my cat hate my cat

INTO JAPANESE

あなたの友達の猫は私の猫が嫌いです

BACK INTO ENGLISH

Your friend's cat hates my cat

INTO JAPANESE

あなたの友達の猫は私の猫が嫌いです

BACK INTO ENGLISH

Your friend's cat hates my cat