YOU SAID:

The only party i'll ever be on is this.

INTO JAPANESE

私が参加する唯一のパーティーはこれです。

BACK INTO ENGLISH

This is the only party I will be attending.

INTO JAPANESE

これは私が出席する唯一のパーティーです。

BACK INTO ENGLISH

This is the only party I will attend.

INTO JAPANESE

これは私が出席する唯一のパーティーです。

BACK INTO ENGLISH

This is the only party I will attend.