In Chinese language, the directional complement is not only large in number, but also complex in application, especially the extensive use. As a result, many overseas students often make some mistakes about the applications of the extensive use when they study in intensive Mandarin course in China. The main mistakes they often make are the three conditions as follows.

The first condition is the omission of the directional complement like 他刚一开口，妈妈就不由得笑which should be 他刚一开口，妈妈就不由得笑起来. Another condition is the wrong order of the directional complements. Many students often make sentences like 他们一见面就聊天起来, which, as a matter of fact, should be 他们一见面就聊起天来. With the influence of indefiniteness of object and definiteness of subject, if there are certain recipients, they should be put at the beginning of sentences or use 把structure. For example, the sentence 你的证件留下来should be 把你的证件留下来.

Therefore, the students attend to school to study in China need to pay much attention to the extensive use of directional complements. Since the extensive uses are extended from the basic application, it would be better to review the basic application first before learning the extensive uses, thus helping students understand and master., in order to deepen the expression, teachers can also use the method of combining the format and pictures together.

In addition, the number of verbs or adjectives before the extensive application of the directional complement is limited. As a result, in order to avoid the unnecessary analogy, the teachers can try to list several verbs or adjectives that often allocated with the directional complements when teaching or learning a certain directional complement and explain the use and scope in detail.

Of course, it is important to tell apart the differences to the directional complements that have similar meanings or applications like 过来and过去. If the different complements collocated with the same verbs are similar in meanings, it is also essential to differentiate and analyze such as想起来and想出来. In this way, students will have better understanding on the extensive uses of directional complements.