YOU SAID:

this cat is a cat that eats cats

INTO JAPANESE

この猫は猫を食べる猫です。

BACK INTO ENGLISH

This cat is a cat eating the cat.

INTO JAPANESE

この猫は猫を食べる猫であります。

BACK INTO ENGLISH

This cat is cats eat cats.

INTO JAPANESE

この猫は、猫猫を食べるです。

BACK INTO ENGLISH

This cat eats cat is.

INTO JAPANESE

この猫を食べる猫は。

BACK INTO ENGLISH

Cats eat cat?

INTO JAPANESE

猫は猫を食べる

BACK INTO ENGLISH

Cat eating cat

INTO JAPANESE

猫を食べる猫

BACK INTO ENGLISH

Cat eating cat