YOU SAID:
Hey bro! How are you doing?
INTO JAPANESE
お兄ちゃん!お元気ですか?
BACK INTO ENGLISH
brother! How are you?
INTO JAPANESE
兄弟!元気ですか?
BACK INTO ENGLISH
Brother! how are you?
INTO JAPANESE
兄弟!元気ですか?
BACK INTO ENGLISH
Brother! how are you?
That didn't even make that much sense in English.