否定句标准用法 there is not
To the second language learners, the difficulty level of the 6 categories is different. Negative usage andeuphemism usage are more difficult, illustrative usage and independent usage are relatively simple.
这6种非疑问用法对第二语言学习者来说难度等级是不同的,“什么”的否定用法和委婉用法是比较难的,“什么”的例指和独用用法是比较简单的。
参考来源 - 汉语“什么”非疑问句用法的对外教学研究·2,447,543篇论文数据，部分数据来源于NoteExpress
“不”的否定用法可概括为两种：认定性否定和叙述性否定。
The author holds that there are generrally two negative usages of "Bu": the judgement negation and the narrative negation.
本文旨在通过英汉语言中的否定用法的研究，探讨语言学习中应注意的问题。
The main idea of this paper is to probe into the problems in language leaning, by the studying of the use of the use of negation in both English and Chinese.
定性分析暗含否定在会话中的具体用法，并进一步探索其成因。
Moreover, a qualitative analysis on implied negation in discourse proceeds by virtue of some linguistic theories related to this topic.
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