YOU SAID:
i went to party yesterday
INTO JAPANESE
昨日のパーティーに行った
BACK INTO ENGLISH
Went to a party yesterday.
INTO JAPANESE
昨日パーティーに行きました。
BACK INTO ENGLISH
Yesterday I went to the party.
INTO JAPANESE
昨日パーティーに行きました。
BACK INTO ENGLISH
Yesterday I went to the party.
That didn't even make that much sense in English.