interrogative word

基本解釋

"Nada" mean nothing and anything. The word can be used in affirmative, negative and interrogative sentences.
指什么也沒有，可用于肯定句、否定句和疑問句。
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They are of similar word class and grammatical form. But their non-interrogative usages differ because of syntactic constraints.
而非疑問用法由于受到不同的句式制約，產生了不同的表達方式。
When interrogative pronoun and negative word appear simultaneously, the former is restrained by syntactic licensor including negative operator.
疑問代詞和否定詞共現(xiàn)時，前者要受到包括否定算子在內的句法允準語的約束。