YOU SAID:
I have done things with your mother
INTO JAPANESE
お母さんと色々なことをしたことがある
BACK INTO ENGLISH
I have done many things with my mother.
INTO JAPANESE
私は母と一緒にたくさんのことをしてきました。
BACK INTO ENGLISH
I've done a lot of things with my mother.
INTO JAPANESE
私は母と一緒にたくさんのことをしてきました。
BACK INTO ENGLISH
I've done a lot of things with my mother.
That didn't even make that much sense in English.