否定句

否定句是表示否定的句子。必须有否定词，古代汉语中否定词可以是副词"不"、"弗"、"毋"、"勿"、"未"、"否"、"非"，可以是动词如"无"。

动词的否定转移

1.形式上否定主句的谓语，实际上是否定从句的谓语

当动词"think"、"believe"、"suppose"、"imagine"、"expect"、"feel"的主语是第一人称，谓语动词为没有任何副词修饰的一般现在时，它们的否定式实际上是对宾语从句的否定。表示说话者提出一种委婉的看法或主张。如:

I think that he will help us.--I don't think that he will help us.我认为它不会帮助我们。

I believe that he is right.--I don't believe that he is right.我认为他不对。

I suppose that he likes it.--I don't suppose that he likes it.我想他不喜欢它。