must+have+been
答:must have been prosperous:这个是情态动词的过去式,由于情态动词没有过去式,因此用must+have+been表示过去,即过去一定很繁荣。must be不一定是系动词,后面加doing是现在进行时。must have been 本身可以是现在完成时,后面加doing是现在完成进行时。
答:must have been和must be的区别在have。因为本句是指对过去情况的推测,所以必须要用“情态动词+动词的完成式”。have在这里表示是动作已经完成。所以must have been是对过去的事实的肯定猜测,must be是对现在事实的肯定猜测。例句:Sorry I made such a fool of myself last night. I must have ...
答:“当时一定是...”此句型用于表示对过去发生的事情的推测。如 He must have been Swedish. 他当时一定是瑞典人。希望我的回答能够帮到你,望采纳!祝你学习进步,天天快乐。O(∩_∩)O
答:must +have+过去分词,表示对过去情况的推测。而must+原形动词,表示对现在情况的推测。汉语都是译成"一定⋯"。以上是需要记的,无原因好说。
答:must have been 和 must be的区别在 have have在这里表示是 动作已经完成。所以 must have been是对过去的事实的肯定猜测 must be是对现在事实的肯定猜测 e.g.She sings so well.I think she must have been a singer.她唱得真好。我想她以前肯定是名歌手。he doesn't come to school today....
答:Must have been当时一定是,表示对过去某一时刻内动作的猜测,否定can't have been当时不可能是
答:must be和must have be的区别主要是:must have been表示对过去情况作推测;must be表示所对现在情况的推测。例如:1、He must be ill.他一定是病了。(指现在有病)2、He must have been ill.他当时一定是有病 / 他一定生过病。(指过去有病)3、He must be very rich.他一定非常富有。(...
答:Had to 是 have to 的过去时,表示不得不怎么样。例如:我不得不去学校上课--I had to go to school; Must have been 表示非常确定...,如果后面接done,就是你肯定被怎么了,例如:你一定被骗了--you must have been cheated;如果后面接形容词,就表示你一定是怎么了,比如:你一定是疯了-...
答:must have been表示对过去时间发生的动作或存在的情况的推测,一般用于肯定句.例如:She must have been in the library, I saw her there just now.她肯定在图书馆,刚才我在那儿见她了。can't have been 表示对过去发生事情的“不肯定”,常用于否定句和疑问句.例如:He can't have been to ...
答:must have been 一定是已经xxx(做某件事)must have been done 一定是已经完成了 must have done一定完成 been指“被”,有been的句子就是被动句,某个动作被进行的意思。
网友评论:
晁送19130738462:
must be+表语 must+have+been什么意思?否定形式是什么?以及意思 -
2998家选
:[答案] 肯定是 肯定已经(做过什么什么了) must not have been
晁送19130738462:
关于must have been的用法must have been用法是作对过去的事情猜测,例如she must have been a singer但是如果有一句话是这样,he must have noticed ... -
2998家选
:[答案] 现在must have done都是表推测,要表达“本应”的含义都用should/could have done.
晁送19130738462:
must be+表语 是什么意思 -
2998家选
: 肯定是 肯定已经(做过什么什么了) must not have been
晁送19130738462:
英语语法问题 must have been prosperous是个啥时态 -
2998家选
: must have been prosperous:这个是情态动词的过去式,由于情态动词没有过去式,因此用must+have+been表示过去,即过去一定很繁荣.
晁送19130738462:
must have been 后面加动词,是不是一定要用doing?可以用do吗?如果可以顺便讲解一下相关语法知识, -
2998家选
:[答案] 是doing 或是 done 不可以是 do 因为 must have been其实相等於was/were... /-所以在主动语法时 必须是-ing 而在被动语法时 必须是-过去分词 ( done) 不存在do的可能性
晁送19130738462:
must have been与must have done的区别? -
2998家选
:[答案] 其实两者在时态都没有什么区别,都是表示过去一定做过某事~但是~ must have been强调的是状态 must have done强调的是动作~
晁送19130738462:
英语中,must have been 和 must have +过去分词,有什么区别
2998家选
: must have done 是表示肯定的推测 must have been 是must have done的其中一个形式
晁送19130738462:
主语+must+have+been+过去分词 造句! -
2998家选
: The car must have been repaired .
晁送19130738462:
must have been和must be的区别 -
2998家选
: must have been和must be都是情态动词表猜测 must have been是对过去的猜测:You must have been tired after finishing all the work. must be是对现在的猜测(肯定是):He must be Alex.
晁送19130738462:
英语:情态动词被动语态1.must be+过去分词(一定被) 2.must have been+过去分词(一定已经被) 3.must being +过去分词(一定正在被) 这几个对吗?... -
2998家选
:[答案] 1. 如果感官动词后的是V-ing作为宾语补足语,变被动时不需要加to. 如果感官动词后的是V-pp作为宾语补足语,变被动时也不需要加to. 只有当感官动词后的是不带to的不定式(即所谓的动词原形)作为宾语补足语,变被动时才...