Here is a video showing a shotokan kihon series of 5 basic combinations.
1. Sanbon Zuki.
2. Age uke, Gyaku zuki, Gedan Barai.
3. Uchi uke, Kizami zuki, Gyaku zuki.
4. Soto uke, Empi, Uraken.
5. Shuto uke, Nukite.
When stepping forward in front stance, try not to move the front foot to the side, or shuffle the foot back as you start to step. The first punch of sanbon zuki goes to jodan (upper level). Try and use the hips for all three punches, which is easy for the second punch, but difficult for the first and third punches.
When performing the second set of karate techniques, age uke, gyaku zuki, gedan barai, initiate the step by strongly bending the back knee as you start to step back. The body position on the completition of age uke, should be hanmi (side facing), then shomen (square), for gyaku zuki (reverse punch) and finally hanmi for the gedan barai (downward block), all three are in zenkutsu dachi (front stance).
The third combination involves a spinning movement. Spin on the heel and land with uchi uke (inside forarm block), then kizami zuki (jab punch) and finally gyaku zuki (reverse punch), once again all in front stance.
On the fourth set of karate techniques, step up with the back foot, then shoot the front leg to the side and block soto uke (outside forarm block), in zenkutsu dachi (front stance), then strike empi uchi (elbow strike), uraken uchi (backfist strike) in kiba dachi (horseriding stance)
Then on the final set, block shuto uke (knifehand block) in kokutsu dachi (back stance), then strike nukite (spearhand), in zenkutsu dachi (front stance).
A great karate exercise for shomen and hanmi, spinning, stepping and switching stances.