YOU SAID:
are you going to the party tonight
INTO JAPANESE
今夜パーティーに行きますか
BACK INTO ENGLISH
Are you going to party tonight
INTO JAPANESE
今夜パーティーに行くの?
BACK INTO ENGLISH
Are you going to a party tonight?
INTO JAPANESE
今夜パーティーに行きますか?
BACK INTO ENGLISH
Are you going to a party tonight?
That didn't even make that much sense in English.