In this artcle it is considered that the Japanese "te kuru" form is in the process of grammaticalization from a main verb to an auxiliary verb. Based on this consideration this article discusses the and expressed by the "te kuru". First, I examined about difference of and . Second, can be expressed by an abstract form of the verb "kuru" which is usually used to describe the moves of concrete objects, which illustrates the continuity of grammaticalization. Such