语法化演变中义变与音变存在一种象似性,随着语义的虚化,语音形式往往也随之弱化。“了”的音变既可以从历时层面观察,也可以从共时的方言材料观察。方言中不仅仅是动词“了”与助词“了”语音形式有差异,就是动态助词“了”内部与事态助词“了”内部也存在差异,这种差异往往是语义及句法差异的表现。音变既可以巩固语法化演变成果,同时也可以推动语法化的进行。 There is an iconicity between the meaning change and the sound change in the grammatical evolution. As the semantic blurring, the pronunciation form often weakens. The phonetic changes of “” can be observed either from diachronic perspective or from synchronic dialect material. Dialect is not only the verb “a ” and the auxiliary word “a ” voice forms are different, that is, the dynamic particle “” internal and state auxiliary particle “a ” there are also internal differences, this difference is often Semantic and Syntactic Differences in Performance. Transliteration can both consolidate the fruits of the evolution of grammar, but also can promote the progress of grammaticalization.