YOU SAID:

We should go the party soon

INTO JAPANESE

私たちはすぐにパーティーに行くべきです

BACK INTO ENGLISH

We should go to the party at once

INTO JAPANESE

私たちは一度にパーティに行くべきです

BACK INTO ENGLISH

We should go to the party at the same time

INTO JAPANESE

私たちは同時にパーティーに行くべきです

BACK INTO ENGLISH

We should go to the party at the same time