YOU SAID:

my cat crashes someone elses party

INTO JAPANESE

私の猫は他の誰かパーティーをクラッシュ

BACK INTO ENGLISH

My cat crashes someone else party

INTO JAPANESE

私の猫は他の誰かのパーティーをクラッシュします

BACK INTO ENGLISH

My cat crashes someone else's party

INTO JAPANESE

私の猫は他の誰かのパーティーをクラッシュします

BACK INTO ENGLISH

My cat crashes someone else's party