Man, for a bunch of people who probably pride themselves on their creativity I am seeing a surprising lack of it here.
This is a narrative system. People are not thinking outside the box on this one.
Knockdown: I cut away the floor you are sanding on, have a breach weapon beyotch! I slice at your legs knowing you will have to jump and then I push you with my other hand while you are airborne. Since Jedi are force users you could even narrate this as a force push.
Stunning Blow: We dance until you are under a chandelier and then I cut it down to land on your head. I swing my lightsaber until you back up enough for me to hit you with a door/kick to the face/hilt/etc.
Feral Strength: You go to parry or dodge and I just swing so hard it doesn't matter. I am empowered by the light side with righteous determination for those innocents you harmed will be the last.
Furious Assault: Well if you can't figure this one out, please turn in your gamer license and hang your head in shame.