“不行”是由否定副词“不”与动词“行”构成的偏正短语。它的词汇化与“行”语义的虚化密切相关。“行”语义虚化的路径为:位移动词、行为动词、结果义动词、情态动词,当“行”虚化为情态动词“可以”时,线性顺序上紧邻相连的“不行”发生词汇化。动词“不行”在句法、语义和语用共同作用下发生语法化,其语法化路径为:动词>形容词,动词>程度副词,动词>假设义连词。其语气词用法是“非……不行”句式赋予的。 “No ” is a biased phrase composed of negative adverbs “no ” and verb “line ”. Its lexicalization is closely related to the semantic virtualization of “line ”. “Line ” semantic blur path: displacement verbs, behavioral verbs, the results of the verbs, modal verbs, when the “line ” into the virtual verb “can ”, the linear sequence immediately adjacent “No” lexicalization occurs. The verb “不行” is grammaticalized under the combined action of syntax, semantics and pragmatics. Its grammaticalization path is verb> adjective, verb> degree adverb, verb> false conjunctive. Its modal usage is given by the sentence “non-sth”.