No matter what you do a werewolf can never become a vampire unless you can somehow turn it back into a human. There are many answers for this question in different historical vampire and werewolf legends. However from what i have researched this is the best answer i have.
to turn into a werewolf wolf
The Lay of the Werewolf is about a knight who is also a werewolf. His wife takes his clothes one day so he can no longer turn back into a human. The king of the land goes hunting one day and catches this werewolf. The werewolf is very tame. The king finds out that this werewolf is one of his knights and gets his clothes back so he can change back into a human.
turn to him into werewolf
The power to turn into a werewolf and back to a human, called phasing.
A dead werewolf
Another Werewolf biting the man will turn it to a werewolf
You have to go to the Companions in Whiterun. After a few quests they will turn you into a werewolf.
no...bella does not turn into a werewolf
no you can't because the person you bite has to be alive to become a werewolf.You can't turn someone back to life just because your a werewolf and you bite them!
No, Bella Swan does not turn into a werewolf in New Moon.
actually they can't if there not born into a werewolf.