the forms are the sequences of the basic techniques. they are fixed in advance. the forms in the tangsudo are obtained from different styles of martial arts. indeed, the majority of them is the versions of karate kata. they show the special practical use of all the basic techniques in a variety of situations. the form is considered as if the performer of the form were defending himself against many enemies. the "hyong" are arranged patterns of techniques which the students do regularly at all levels. the study of the forms increases abilities of understanding, of learning, and of remembering. forms change the shape of the basic techniques and they teach the strategy, the tactics, the choosing of the right moment, and the balance. if the tangsudo is treated as "the art for the art", the forms are easily learned and they are similar to a kind of dance in presentation. while the student advances in ability, the "hyong" become more complicated and become the challenge. forms are a part of the training of tangsudo which a student can easily do regularly almost anywhere.