YOU SAID:

If i were at a party i would party.

INTO JAPANESE

もし私がパーティーにいたら、私はパーティーをするでしょう。

BACK INTO ENGLISH

If I were at a party, I would have a party.

INTO JAPANESE

もし私がパーティーにいたら、私はパーティーを開くでしょう。

BACK INTO ENGLISH

If I were at a party, I would have a party.