In terms of grammatical features,the adverb 'conglai(从来)' in Contemporary Chinese is different from that of Middle Chinese and Modern Chinese.'Conglai(从来)' is often placed at the beginning of the sentence in Middle and Modern Chinese,but between the subject and the predicate in Contemporary Chinese;there is no obvious tendency in both the affirmative and negative usage of 'conglai(从来)' in Middle Chinese and Modern Chinese, but it is mainly used in negative sentences in Contemporary Chinese;when used in affirmative sentences,there are seld...