YOU SAID:

i went to the mall to hang out with my friend's mother

INTO JAPANESE

友達のお母さんと遊びにモールに行った

BACK INTO ENGLISH

I went to the mall to play with my friend's mother.

INTO JAPANESE

友達のお母さんと遊びにモールに行きました。

BACK INTO ENGLISH

I went to the mall to play with my friend's mother.