YOU SAID:

Bro thinks he did something

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ブロは自分が何かをしたと思っている

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bro thinks he did something

INTO JAPANESE

兄は彼が何かをしたと思う

BACK INTO ENGLISH

my brother thinks he did something

INTO JAPANESE

私の兄は何かをしたと思っている

BACK INTO ENGLISH

my brother thinks he did something