YOU SAID:
I love you let's go party
INTO JAPANESE
愛してるパーティーに行こう
BACK INTO ENGLISH
Let's go to the party I love
INTO JAPANESE
大好きなパーティーに行こう
BACK INTO ENGLISH
Let's go to your favorite party
INTO JAPANESE
好きなパーティーに行きましょう
BACK INTO ENGLISH
Let's go to your favorite party
That didn't even make that much sense in English.