This research focused on the verb ‘Yu’, investigates from a synchronic and diachronic perspective, analyzes the characteristics of the basic meaning represented by the meanings of ‘give’ and ‘socialize with sb’. and the development and changes of semantics, and demonstrates them through diagrams. And also analyzeds the semantic relationship between the semantic items of the verb ‘Yu’. Through the investigation of the semantic relationship, we can give an explanation tha why the meaning of ‘Yu’ in the meaning of ‘together’ can be explained to ‘help’, ‘give’, ‘applaud’ and ‘socialize with sb.’ We think the result breaks through the limitations of previous research. This research also pays attention to the expansion of the semantic function of the verb ‘Yu’, especially the ‘introduce tool’ function and the “passive” function. Regarding the function of ‘introduce tool’, this article refers to the formula of “COMITATIVE tool case INSTRUMENT” in linguistic typology, and sorts out the meaning of ‘Yu’ from ‘accompany’ to ‘attachment’ and then to ‘utilization’, and at last develop to the ‘introduce tool’ function. Regarding the “passive” function, after specific analysis, the conclusion is that the “passive” function of ‘Yu’ comes from two development paths, one is induced by the meaning of ‘give’, and the other is induced by the meaning of ‘accompany’. The common point of the ‘passive’ function is that they have experienced ‘causative’ in the previous stage of passivity. The difference is that the ‘causative’ of the former approach comes from ‘give’, but the source of the latter way comes from ‘accompany’.

The purpose of this study is to evaluate the empirical adequacy of the event-based language typology with special reference to English and Korean. The event-based language typology classifies languages into I- and D-languages based on the importance of the initial and terminal bounds of an event with respects to the way the relevant languages use in the recognition of eventiveness. In I-languages, in which the initial bound of an event is important, activity and accomplishment are recognized as events, while in D-languages, where the terminal bound of an event is important, achievement and accomplishment are so recognized. English and Korean, the target languages of this study, show the characteristics of I- and D-languages respectively. In the case of English, we can confirm that it falls into D-languages based on the fact (1) that event cancellation is impossible and (2) that causative reading is possible in terms of the delimitation of predicates. In the case of Korean, we can tell that it belongs to I-languages as (3) event cancellation is possible and (4) only NPs that can work as an initiator can be the subject in the position of [Spec, FP-init].