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must have been否定句
10.She nust
have
been
fifty.变为
否定句
?
答:
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,所给句子变为否定句就是——She can'...
must
have
been
和must be的区别在哪里?
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 ...
为什么第一题can't
have
been
不行?第二题
must
have been 不行
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 yo...
must
have
been
改为一般疑问句、反意疑问句、
否定句
,例如That must have...
答:
how
must
that
have
been
difficult for her?
must的否定
形式是什么?
答:
must
,英语单词,主要用作为助动词、名词,作助动词时意为“必须;一定;应该,得”,作名词时意为“ 绝对必要的事物;待发酵的葡萄汁;发霉,潮气;(美)穆斯特(人名)”。短语搭配 must be 一定;一定要;肯定是 must
have
必须拥有;非有不可 must have
been
一定(对过去事实肯定的推测)must ...
must的否定句
怎么写?
答:
His absence
must
have
been
noticed.他的缺席一定被人注意到了。He must have known what she wanted.他一定早已知道她想要什么了。You must know him ─ he's an institution around here!你一定认识他——他是这一带的知名人士!那么,表示
否定
的推测时,其否定形式是大多人用 can't,请看:...
she
must
have
been
forty. 变反意疑问句!求答案!
答:
The old man must
have
been
a Swedish.改
否定句
The old man can't have been a Swedish.参考2:.
must的否定
形式表示“禁止/不许”,不能表示推测;mustn't have done sth此种形式的确不存在,must have done sth“一定做过某事”的否定形式是can't/couldn't have done sth,意思是“不...
must
be
的用法
答:
“must+
be
”“must+be+ v -ing”“must+表示状态的动词”可表示现在或一般的情况;“must+
have
”表示过去的情况;“must+表示动作的动词”表示将来的情况。
must的
英式读法是[mʌst];美式读法是[mʌst]。单词直接源自古英语的moste,意为应当,必须,需。作助动词意思有必须;应当;很...
新概念英语第一册
must的
用法
答:
must
比较常见的用法是:表义务或要求等的“必须”;表猜测的“肯定,一定”。二、表义务或要求等 这时,must表示“必须”。如: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 after ...
...do it和you
must
not do it 还有mustn`t
have
been
和must haven...
答:
you mustn't do it,语气比you
must
not do it 要重些,前者突出命令性,后者略显建议性 mustn't
have
been
一定没有……(强调主观推测/认为没有……)must haven`t been……(虽然也是主观推测/认为没有……,但强调客观上没有……的可能性)希望说明白了 ...
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