YOU SAID:

Hello my name is bobby and i have a brother named billy.

INTO JAPANESE

こんにちは私の名前はボビーと私弟のビリーの名前します。

BACK INTO ENGLISH

Hello my name is Bobby and my brother Billy's name.

INTO JAPANESE

こんにちは私の名前はボビーと弟のビリーの名前です。

BACK INTO ENGLISH

Hello my name is Bobby and his brother Billy's name.

INTO JAPANESE

こんにちは私の名前はボビーと彼の弟のビリーの名前です。

BACK INTO ENGLISH

Hello my name is Bobby and his brother Billy's name.