This article classified the auxiliary verbs from the angle of the modality and analyzed the distributional characteristics of the co-occurrence. Based on the existing discussion of modalities, this article selected 10 representative auxiliary verbs indicating epistemic modality, deontic modality, and dynamic modality, and analyzed how they are actually co-occurred in terms of corpus. In doing this, an approximate distribution of the actually co-occurred auxiliary verb combinations could be identified. The significance of this study ultimately lies in the fact that compared to previous studies relying on intuition to discuss the same issue, it could definitely present the actual possibility of co-occurrence of auxiliary verbs by demonstrating empirical figures and their distribution patterns through a large-scale illustrative analysis. These figures are expected to be also useful in the future regarding pedagogy.