YOU SAID:
i have a fun party to go to tonight with my friend
INTO JAPANESE
今夜は友達と楽しいパーティーに行くよ
BACK INTO ENGLISH
I'm going to a fun party with my friends tonight.
INTO JAPANESE
今夜は友達と楽しいパーティーに行きます。
BACK INTO ENGLISH
I'm going to a fun party with my friends tonight.
That didn't even make that much sense in English.