YOU SAID:

my goldfish ate its brother im so sad

INTO JAPANESE

私の金魚を食べたその弟イムとても悲しい

BACK INTO ENGLISH

His brother ate my goldfish IM so sad

INTO JAPANESE

彼の兄弟を食べた私の金魚イムとても悲しい

BACK INTO ENGLISH

His brother ate my goldfish IM so sad