YOU SAID:

i ate out your mom last night.

INTO JAPANESE

昨日の夜、あなたのお母さんを外食しました。

BACK INTO ENGLISH

I took your mother out to dinner last night.

INTO JAPANESE

昨夜、あなたのお母さんを夕食に連れて行きました。

BACK INTO ENGLISH

I took your mother out to dinner last night.