YOU SAID:
I did thy mother the previous night.
INTO JAPANESE
私は前夜あなたのお母さんをしました。
BACK INTO ENGLISH
I did your mom the night before.
INTO JAPANESE
私は前の晩にあなたのお母さんをしました。
BACK INTO ENGLISH
I did your mom the night before.
Come on, you can do better than that.