YOU SAID:

Go spoil someone else's party...

INTO JAPANESE

誰か他の人のパーティを台無しに行く.

BACK INTO ENGLISH

To spoil the party for someone else to go.

INTO JAPANESE

移動する他の誰かのパーティを台無しに。

BACK INTO ENGLISH

Someone else to move the party to ruin.

INTO JAPANESE

台無しにするパーティーを移動する他の誰か。

BACK INTO ENGLISH

Someone else to move the party to ruin.