YOU SAID:
bro you wont believe what happened to me yesterday
INTO JAPANESE
兄貴は昨日私に何が起こったのか信じないだろう
BACK INTO ENGLISH
my brother won't believe what happened to me yesterday
INTO JAPANESE
兄は昨日私に起こったことを信じないだろう
BACK INTO ENGLISH
my brother won't believe what happened to me yesterday
You've done this before, haven't you.