YOU SAID:

this is the worst party i have ever been to in the history of parties

INTO JAPANESE

これは私が今までにパーティーの歴史の中で行った中で最悪のパーティーです

BACK INTO ENGLISH

This is the worst party I have ever done in the history of the party.

INTO JAPANESE

これは私が今までに党の歴史の中で行った中で最悪のパーティーです。

BACK INTO ENGLISH

This is the worst party I have ever done in the history of the party.