I want to share with you a list of a very effective Muay Thai combos. I have listed basic ones for beginners and also more powerful combinations for more advanced fighters. I have picked them up while training and sparring in the UK and in Thailand. I want to share with you those that I have found the most useful.
Some of the combos that comes natural to me may not suit you. That's normal. Try them out and then you'll know which one feels natural to you. There's no point of perfecting a combo that you are not 100% sure about. You may use it later in a sparring but you won't be able to rely on it during a real fight.
Find your strong and weak points and use combos that works well for you. It cannot be forced, it must come natural to deliver a sequence of strikes. Ideally, you should choose and perfect combos that utilize your most powerful strikes - be it a head kick, a hook or a knee strike and not making yourself too vulnerable to counter attacks at the same time. Keep it simple, keep it real.
In most combinations first few punches are meant to open your opponent's guard for further strikes:
Since modern Muay Thai punches are based on Western boxing strikes most of the combinations start with a simple jab+cross combo which may be a little predictable. That's why you should do some more tricky moves from time to time:
Left inside leg kick (switch kick)+cross+left hook
jab+right overhand+left inside leg kick
jab+right uppercut+left hook+cross
jab+cross+right leg kick
jab+cross+left leg body kick+cross
And now my special move. I call this one an ex-girlfriend cause it's really nasty:
left jab+right knee+left elbow
It is very useful for shortening of the distance between you and your opponent and getting into a clinch.
jab+cross+left hook+right uppercut+roundhouse kick
left inside leg kick+cross+left hook+roundhouse kick
jab+rcross+left uppercut+left overhand
jab+cross+left hook+right roundhouse kick+right knee
It is not a problem if you cannot memorize all of them at once. Just write them down and stick it to the wall at your gym right behind a heavy bag. Next time when you start your bag routine perform them one after another and pick the most useful ones to practice with your sparring partner.