“... adverb fănzhèng with the conjunctions bùguăn, búlùn, and wúlùn respectively in texts. Previous...”
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“... is grammaticalized from originally an adverb to a conjunction (textual marker) and finally becomes a discourse marker. ...”
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“... frequent. When it is employed as an adverb, buguo indicates an emphasis on the proposition it introduces...”
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“... as discourse conjunctions since then. There are some verbs, adverbs, nouns or other elements which can...”
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