Describing Verb Conjugation in Korean Language Education. To learn how verbs conjugate is one of the most important and difficult task for foreign learners of Korean language. This study examined how regular and irregular conjugation is dealt in Korean grammar guide books for Korean language teacher and Korean grammar textbooks for foreign learners. As results, we found that the concept of irregular verbs, in both its definition and scope, were often not coherent. In addition, a lot of types of conjugation seemed to be undescribed. To solve these problems, this study suggested the classification of conjugation. We categorized them into two basic types(phonologically and lexically conditioned) and presented conjugation list for each category. We also suggested that all types of conjugation should be designated according to stem-final forms rather than alternational forms.