Korean serial verb construction (SVC) consists of two serialized verbs representing one event like a complex predicate; non-stative bivalence verbs are flexibly produced. SVC shows the argument sharing and composition, giving a temporal order or simultaneous event. Three-serialized verb construction (3v-SVC) also has a similar pattern with SVC, but its first verb is detached from the V2 and V3 relation. SVC is analyzed as the phrasal construction composed by two non-stative verb lexemes. This analysis based on Sign-Based Construction Grammar provides the plausible explanation for the grammatical properties of SVC and 3v-SVC.