must doing,do doing done

must doing,do doing done

Must表示有根据有把握的推测，只能用于肯定句后面接动词原形，表示对现在情况的推测，后接be doing表示对正在发生的情况的推测，后接have done表示对过去情况的推测。He must be illHe must be doing his homework now.!!!注：许多情态动词可以表示推测，按照肯定的强度从强到弱排列：must , will , would , ought to , should , can , could , may , might 2.nee

must doing还是must to do?英语人气：772 ℃时间：2019-11-15 07:44:06优质解答must do因为must是情态动词，所以后面直接加动词原型我来回答类似推荐Attentions 解析must do must do因为must是情态动词，所以后面直接加动词原型分析总结。mustdo因为must是情态动词所以后面直接加动词原型结果一题目must doing还是must to do? 答案m

肯定句：He must have some water after the heavy work.　　否定句：He needn't have any water after the heavy work.　　⼀般疑问句及其回答：Must he have any water aftdoing───v.做；干(do的ing形式);n.活动；所作所为be must───必须the must───必须的must of───必须的must he───他一定要吗双语使用场景We must have patie

want sb to do 想让某人去做must be doing肯定某人正在做某事You’d better not do it again! 你最好别再干这事了。home.putclub|基于2个网页更多释义例句下must用法情态动词的用法❖must情态动词，没有人称或数的变化，后接动词原形，❖其主要用法如下：❖1．表示义务或必要性，意思是“应该、必须”，通常用于肯定句及疑问句。❖如：Youmustgotobed

此时，must可以用来表示对现在的状态或动作进行猜测。如果是状态，must后面直接跟表状态的谓语动词即可；如果是动作，must后面的谓语动词则要采用be doing的形式。如：状态：He must be omust do must 是情态动词.