An auxiliary verb combines with a main verb to express tense, aspect, mood, and/or voice. For instance, English auxiliary verbs include “can,” “have,” “may,” “shall,” and “will,” since they combine with a main verb, as in “I can speak Korean.” This unit first discusses some general structural characteristics of Korean auxiliary verbs. Then, it introduces how the following five verbs, 보다 “see,” 오다 “come,” 가다 “go,” 주다 “give,” and 드리다 “give [offer]” can serve as auxiliary verbs.