YOU SAID:

i crash someone party

INTO JAPANESE

私は誰かのパーティーをクラッシュさせます

BACK INTO ENGLISH

i crash someone's party

INTO JAPANESE

誰かのパーティーを潰してしまう

BACK INTO ENGLISH

crash someone's party

INTO JAPANESE

（人）のパーティーを潰す

BACK INTO ENGLISH

crash someone's party