there are 6 saber forms, and one basic force form.
Consulars learn 3 saber forms, and then the 4 force forms (1 basic, 3 from the jedi masters).
Sentinels and Guardians learn all 6 saber forms, but only the 1 basic force form.
So, you'd have to change what class you play to get these forms, or use KSE to add them to you. I'm pretty sure they're found under the force power section.