YOU SAID:

I ate my fathers pickle

INTO JAPANESE

私は私の父親のピクルスを食べた

BACK INTO ENGLISH

I ate my father pickle

INTO JAPANESE

私は私の父のピクルスを食べた

BACK INTO ENGLISH

I ate my father's pickles

INTO JAPANESE

私は私の父の漬物を食べた

BACK INTO ENGLISH

I ate my father's pickles