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The house don't have to be ……改错为什么是改don't而不是改have?
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为什么是don
't have
to
do sth.
而不是have
not do sth
答:
1.情态动词后面加动词原型 2.
have
to
的否定形式是
don
't have to 3.need的否定形式是needn't
haven'
t
和
don
't
have
的区别是
什么?
答:
1、在语法中,当
have
做助动词时,在可以在其后加not表否定,所以当表示“没有”时,用haven't的。当have做实意动词时,用do的各种形式充当它的助动词,否定时,在do的各种形式后加not,变成
don
'
t
have 。2、have表示...
...
为什么
它的否定式还需要助动词辅助(
don
't
have
to
)?
答:
have to的意思是不得不,通常在句子中做谓语成分,比如:I have to go to school.是一个动词短语。
所以改成否定句是要借助动词do
。
一般过去时的否定是didn'
t
do,现在完成时的否定是haven't done 或h...
答:
can/could/may/must/will/would/shall/should/...),助动词(
have
/has /had 完成时)的,变否定句时直接在这些词的后面加not,否则要加上相应的助动词
don
't / doesn't (一般般现在时第三人称单数用doesn't),...
haven't
to
和
don
't
have
to的用法分别是
什么
答:
have
to是
一个固定短语, have 是行为动词, 意思是“不得不”它的否定应为
don
't have to 意思是“不必要,不需要”have做助动词时,在可以在其后加not表否定,所以当表示“没有.”时,如果要用haven't的话,正规的...
...没有” 不能用haven'
t
吗? haven't 和
don
't
have
有
什么
...
答:
一般用来表达时态:现在完成时和现在完成进行时 I haven't seen you for ages. 很久没见你了。I haven't been doing this for ages. 我好久没做这件事了。然而 -- "没有" 用
have
表达:
don
'
t
have 或者 have no...
求求
don
't
have
to
和 have not to 的区别撒、求解= =
答:
have
not to = need't 不需要 不必 指特定性的行为
don
't have
to
不必 是经常性 的行为如 you have't to go to school today ,have you ? 你们今天不要去上学,对吧? you don't have to go...
英文mustn't,
don
't
have
to
,doesn't have to,didn't have to有
什么
区别...
答:
mustn't是“禁止”的意思,凡用此的后面一定跟绝对不能或绝对不允许做的事。don't
have
to
,doesn't have to,didn't have to三个都是 “没有必要做” 的意思只是在时间和对象的使用上有区分
;don
't have to用于...
we
don
't
have
the
same looks , but we are good friends.
为什么不
用...
答:
而助动词是协助主要动词变形的作用(
don
't是助动词,没有实意,表否定;这句话中
have才是
有实意的主要动词,意思是“有”)。简单点说,可以把 don'
t
have 看成是一个词,意思是“没有” 翻译过来是 我们 没有 ...
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