Bill starts in HOR/Senate
Then a committee is formed to discuss the bill. They amend the bill and then vote on it.
Then once the bill has been approved by the committees it is debated and amended by the full house. The full house then votes on the bill.
Then has it been through HOR/Senate?
yes - a conference committee works through any differences between the versions of the bill that were passed by each chamber.
then both chambers vote on the bill. Then president writes it into law
no - veto bill is sent back to congress. veto can be overwritten if two-thirds of both chambers agree. Then it returns to the chamber it began at.