1. Switch kick with lead leg to the ribs or face ,Jab,Cross,Thai-style roundkick tothe side of the neck.
I like this combination because I have perfected the switch kick with my lead leg,in the gym it almost always connects.Also this combo is very versatile in being that it can be ultilized as both an offensive attack and a defensive counter attack.Many times in the gym,I use it against a figher who loves to rush in with punches.As soon as I see him rushing in a take a 45 degree step backwards,this places with the kick right into my opponets face,then as they are recovering I throw a jab(to stun) then a cross(mostly to blind their vision to the next attack),the a (thai-style) round kick to either the ear or the side of the neck.
When I use this combo as an offensive attack ,the switch kick is aimed toward my opponet's ribs(mostly as a set up,so that they wil drop their hands),in this method the jab and the cross or the primary offensive attacks,then I finish off with the round kick(mostly as intimidation).
2. Jab-Cross-(Thai-style) Round kick.
An offensive combo which the jab stuns or simply gets the opponet's attention,the cross and the kick causes the primary damage though.Simple,yet very effective.
3. (TKD-style) rear leg side kick,(TKD-style)spinning back fist.
I use this one primarly as a defensive(sometimes offensive to throw my opponet off) tatic against a fighter who rushes in with punches.The side kick slides under their jabs and cross hitting their midsection,then I follow up with the spinning backfist as a finisher.This is also a very good tatic against a taller fighter (who boxes primarly) because the side kick poistions your head as a much safer location(oppose to the Thai-style push kick) while neutralizing your opponet's strikes.
4. (Thai-style)Rear leg low kick,High Switch kick.
I use this combo because of its deceptioness.I throw a (right)powerful low kick to my opponet's calve(which is meant to be blocked)then while he is blocking that technqiue I then explode with the(right) high switch kick to the side of my opponets head.
5. Jab-High Switch Kick(to either the head or the ribs).
Another deceptive combo.Many fighters are use to being attack from one angle to another(ex jab-cross,jab-cross-hook,-jab-cross-roundkick;etc).I use the Jab mostly to blind the fighter then the switch kick for damage.
Combinations are by far the best method of attack,they will keep your opponet guessing where you are going to strike next and can have a "tumbling" effect on a fighter;but mixing up combos with random(powerful) single attacks will make it harder for your opponet to study and find patterns in your method of fighting.