YOU SAID:

I am your mom's sister's, best friend's uncle

INTO JAPANESE

私はあなたのお母さんの妹、親友の叔父

BACK INTO ENGLISH

I'm your MOM's younger sister, best friend's uncle

INTO JAPANESE

私はあなたのお母さんの妹、親友の叔父

BACK INTO ENGLISH

I'm your MOM's younger sister, best friend's uncle