情态动词的功能答:基本助动词有三个:do,have和be;情态助动词基本的有十四个:may,might; can,could; will,would; shall,should; must,need,dare,used to,ought to.had better 上述两类助动词的共同特征是,在协助主动词构成限定动词词组时,具有作用词的功能:1) 构成否定式:He didn't go and neither did she.他没去,她也...
初一英语答:你说的是动词的问题, 动词有: 1 系动词,如: be, look(看起来), 2 助动词: 如: do/did等帮助构成时态,语态,句式等, 3. 情态动词: can, may, must等, 4.行为动词(实意动词),这类在动词中占大部分, 如: walk, go, watch等 还有时态问题," 我昨天没有看电视" I did not watch TV...