YOU SAID:

i ate my mom and her donkey

INTO JAPANESE

私は母とそのろばを食べた

BACK INTO ENGLISH

I ate that mother and that donkey.

INTO JAPANESE

私はその母とそのロバを食べました。

BACK INTO ENGLISH

I ate that mother with that mother.

INTO JAPANESE

私はその母親とその母親とを食べました。

BACK INTO ENGLISH

I ate that mother and her mother.

INTO JAPANESE

私は母と母を食べました。

BACK INTO ENGLISH

I ate mother and mother.

INTO JAPANESE

私は母と母を食べました。

BACK INTO ENGLISH

I ate mother and mother.