Based on the analysis of a great number of language data, the present paper points out that Jibenshang（基本上） can collocate with adverb Dou （都） and the like, and Jibenshang Dou（基本上都） is the commonest collocation. In the beginning, these two adverbs in the collocation had different semantic functions： Jibenshang（基本上） denoted scope, and Dou （都） denoted degree. Influenced by factors like meaning, syntax, frequency and language use, they are neutralized semantically, and this collocation gradually evolved into an structure to e...
