Human
No matter which line one came from whether bite or born all wolves have a human form. This form varies from person to person as it does with all other races depending on your family and the traits one is born with.
Beast
A seeming mix between man and wolf this monster type form is the hardest to control form. It is very much like the traditional idea of a werewolf. This form like other forms varies in size and color depending on the person that is shifting.
Wolf
The wolf form looks like a wolf. It varies in color depending on the one shifting seeming to reflect some aspect of them. In this form, they can commune in a human tongue and still have their own personality though like the beast form there is a danger of losing one's self if you spend too much time in this form.
Spirit Wolf
The only person to actually gain this form is Aiyana Lavoie thus it is unclear if it is a form no one knew was possible or only possible to her because she is a witch whose specialty is spirit ranger. This form can be a transformation where one becomes a ghost-like or energy like a wolf or outside where this wolf exists outside of yourself and can aid you.