YOU SAID:

We're having a party wanna come

INTO JAPANESE

来たいパーティーをしております

BACK INTO ENGLISH

The party wants to come forward

INTO JAPANESE

パーティーが楽しみにして来たいです。

BACK INTO ENGLISH

Come forward to have the party.

INTO JAPANESE

パーティに名乗り出る。

BACK INTO ENGLISH

Come forward to the party.

INTO JAPANESE

パーティーに名乗り出る。

BACK INTO ENGLISH

Come forward to the party.