YOU SAID:
tomorroy i'm gonna go to an amazing party
INTO JAPANESE
tomorroy私は素晴らしいパーティーに行くつもりです
BACK INTO ENGLISH
tomorroy I am going to a wonderful party
INTO JAPANESE
tomorroy私は素晴らしいパーティーに行く
BACK INTO ENGLISH
tomorroy I go to a wonderful party
INTO JAPANESE
tomorroy私は素敵なパーティーに行きます
BACK INTO ENGLISH
tomorroy I will go to a lovely party
INTO JAPANESE
tomorroy私は素敵なパーティーに行きます
BACK INTO ENGLISH
tomorroy I will go to a lovely party
That didn't even make that much sense in English.