YOU SAID:
could you come to my party
INTO JAPANESE
私のパーティーに来てくれませんか
BACK INTO ENGLISH
Will you come to my party
INTO JAPANESE
私のパーティーにきませんか。
BACK INTO ENGLISH
Would you like to come to my party?
INTO JAPANESE
私のパーティーにきませんか。
BACK INTO ENGLISH
Would you like to come to my party?
That didn't even make that much sense in English.