• 虚拟语气 - 引用次数：35

  As a sub-category of conditional sentences in terms of sentence patterns adopted and subjunctive mood in terms of mood expressed, counterfactual conditionals are considered as one of the most complex constructions in English grammar. Therefore, it becomes a big obstacle for Chinese learners to overcome.

  从句子结构的角度看,非真实条件句属于条件句,主从句的动词需要相应的时态配合;从动词形式来看,该语法范畴可归于虚拟语气,牵扯到汉语里不存在的“时态后移”。

  参考来源 - 中国学习者对英语非真实条件句的习得研究

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