YOU SAID:

I like to eat pizza with my mother and my brother and my grandfather.

INTO JAPANESE

私は母と兄と祖父と一緒にピザを食べるのが好きです。

BACK INTO ENGLISH

I like to eat pizza with my mother, brother and grandfather.

INTO JAPANESE

私は母、兄、祖父と一緒にピザを食べるのが好きです。

BACK INTO ENGLISH

I like to eat pizza with my mother, brother and grandfather.