The Grammatical Features and Semantic Evolution of the Modal Verb"Dai"in Jin Dialect Spoken in Datong
The modal verb"dai"in Jin dialect spoken in Datong is mainly used in two syntactic structures:"Neg+dai VP"and"dai VP(+Modal Particle)".Its dynamic modality and deontic modality are used in many ways,and they mostly express the negation of"will","demand"or"approval".The steps of semantic evolution of dai"are as follows:"waiting meaning>needing meaning>modality meaning".Its negative form and meaning characteristics and its negative polarity are the result of diachronic change.The relevant usage shows a subject's negative attitude towards a certain behavior,highlighting the speaker's negative orientation or negative evaluation.