11问答网
所有问题
当前搜索:
must have been
mustn't be和mustn't
have
been
答:
只有
must
be,没有must
been
,但有must
have
been。must是情态动词,情态动词之后只能是动词原形。must be表示对现在情况的肯定性推测,must have been是表示对过去情况的肯定性推测。
can't
have
been
和
must
have been
答:
只要记住这:
must
have
been
... 那时一定是can't have been... 那时不可能是 再好好理解这几人句子,相信你就理解啦.He can't have been ill. He must have been tired.She can't have been forty. She must have been fifty.He can't have been the youngest. He must have ...
用
had
to 或
must
have
been
填空。
答:
1,
must
have
been
虚拟语气,表推测,意思是一定 2,
had
to 因为没有推测的意味,表是原因,意思是不得不 3,must have been 可以翻译过来试试就知道了。因为不可能有“不得不是某国人”这样的句子的。所以只能是推测某人可能是某国人。4,had to 前面说出了原因,后面就“不得不”这样做了。
英语中,
must
have
been
和 must have +过去分词,有什么区别 如题_百 ...
答:
must
have
been
表示过去的状态; must have +实意动词的过去分词表示过去发生过了的动作.
must
have
been
(表示对过去的事情进行推测),怎样讲学生能够理解?_百度...
答:
Must
have
done 表示对过去事情的肯定的推测,在句子当中要有事实依据的,Eg:the ground is wet. it
must
have rained yesterday.
must
have
been
是对过去正在进行的事肯定?还是对过去的事进行肯定?_百 ...
答:
对过去的事情的肯定,
have
been
是现在完成时,指已经做了什么,要对正在进行的事表达肯定后面要加doing
must
have
been
后面加动词,是不是一定要用doing?可以用do吗?如果可...
答:
不可以用do,因为其后面是接ing形式的,表示现在完成进行时,如果跟do时,只能同
must
连用。如:They must
have
been
washing the clothes now.
Must
he finish his homework?
10.She nust
have
been
fifty.变为否定句?
答:
你好!你所给的句子准确清晰打出来是——She
must
have
been
fifty.要变为否定句,需要注意 must的特殊意思和用法——must 必须,一定,表示肯定性推测判断,只能用于肯定句中。must 的否定形式 mustn't 表示【禁止,不许】。要表达【一定不,不可能】,需要用 【can't 】。所以,所...
must
have
been
在主句是一般过去式的宾语从句中变为must
had
been吗...
答:
很乐意为你解答这个问题!首先要清楚
must
, can, should ,may, might 等等情态动词后面动词一定要用原型,也就是说must无论是做“猜测”还是“必须”的意思,后面一定是跟动词原形的。也就是说must
have
been
是正确的说法。而你所提到的must
had
been是不存在的。我明白你是为了强调是过去的时态,...
must
have
been
,后面为什么是表语?
答:
must
have
been
,后面有been,是be动词的过去分词,这里不是进行和被动,那肯定就是系表结构了。
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