YOU SAID:

i like dogs that eats cats that eats mice

INTO JAPANESE

ネズミを食べる猫を食べる犬が好きです

BACK INTO ENGLISH

I like dogs that eat cats that eat mice.

INTO JAPANESE

私はネズミを食べる猫を食べる犬が好きです。

BACK INTO ENGLISH

I like dogs that eat cats that eat mice.