YOU SAID:
what are you not doing tomorrow for our christmas party
INTO JAPANESE
明日のクリスマスパーティーは何しないの?
BACK INTO ENGLISH
What will you do at the Christmas party tomorrow?
INTO JAPANESE
明日のクリスマスパーティーでは何をしますか?
BACK INTO ENGLISH
What will you do at the Christmas party tomorrow?
Okay, I get it, you like Translation Party.