YOU SAID:

i love go to parties with my lovely gf

INTO JAPANESE

私は私の素敵なgfとパーティーに行くのが大好き

BACK INTO ENGLISH

I love going to parties with my lovely gf

INTO JAPANESE

私は素敵なgfでパーティーに行きたい

BACK INTO ENGLISH

I want to go to the party with a nice gf

INTO JAPANESE

素敵なgfでパーティーに行きたい

BACK INTO ENGLISH

I want to go to the party with a nice gf