YOU SAID:
My mom just had a party with her friends last night.
INTO JAPANESE
ママは昨夜友達とパーティーをした
BACK INTO ENGLISH
Mom had a party with a friend last night.
INTO JAPANESE
ママは昨夜友達とパーティーをした。
BACK INTO ENGLISH
Mom had a party with a friend last night.
You've done this before, haven't you.