could+have+done用法
could是什么意思?
could 英 [kəd; kʊd] 美 [kəd,kʊd]aux. 能够， 可以；可能；差点就，本来有可能；很想 v. 能（can 的过去式）短语 Could break 早已破碎 ; 再度 ; 可以毁掉 ; 我的心完全破碎 Could there 莫不是 Could be 可能是 ; 可能的 ; 可以是 例句：I could se...
关于上学路上出车祸向老师请假的英语作文u.sanwen.net
because I have to go to the airport to meet m y uncle. Would you please understanding, the teacher w ould have recording? And I got to cram a
单词的过去式
bring—brought，buy—bought，think—thought，catch—caught，teach—taught 11．以ould结尾且读音为〔ud〕的情态动词过去式。如：can—could，shall—should，will—would
初中英语动词过去式
15．不符合上述规律的动词过去式。如：am，is—was，are—were，build—built，do—did，eat—ate，fall—fell，feel—felt，find—found，fly—flew，go—went，have ／has— had，hold—held，leave—left，make—made，may—might，run—ran，see—saw，take—took ...
六年级发的过去式过去分词单词表 越快越好
11．以ould结尾且读音为〔ud〕的情态动词过去式.如：can—could,shall—should,will—would 12．把动词原形中的o改为a,变成过去式.如：come—came,become—became 13．在动词原形后加d或t变成过去式,并且发生音变.如：hear〔hi 〕—heard〔h :d〕,say〔sei〕—said〔sed〕,mean〔mi:n〕—meant...
动词过去式规则变化
11．以ould结尾且读音为〔ud〕的情态动词过去式。如：can—could，shall—should，will—would 12．把动词原形中的o改为a，变成过去式。如：come—came，become—became 13．在动词原形后加d或t变成过去式，并且发生音变。如：hear〔hi 〕—heard〔h :d〕， say〔sei〕—said〔sed〕，mean〔mi:n...
一年级孩子必须会的自然拼读知识
ow (读音一：cow, now, how, bow； 读音二：bow, low, blow, snow), ou (shout, out, loud) ould (could, would), ough (五种不同的读音：cough, through, ought, slough, plough), ought, , ous (famous, nervous), ue (cruel), ui (fluid) tion (attention, fiction), sion (...
英语动词过去式的变化规律表
英语动词过去式的变法可以分为规则动词的变化和不规则动词的变化，具体规律见下：1、对于规则动词而言，它的过去式就是直接在动词后加后缀-ed，如果该动词是以e结尾，那么就直接加后缀-d。比如：watch（意思是观看）的过去式是watched，dance由于是以e结尾，它的过去式就是danced。2、对于规则动词而言，...
ENGLISH help!!
A.might丢失B.would丢失了C.sh ould有t D.must失去了15.The警察将有困难的时光保留命令的los。(疑问：为什么保留要加ing ？) 注：每道题目请说明理由，十二分的感激，谢谢拉!!!A.except B.but C.besides D.beside13.They have been in the library since___A.a long time ago B.it ha...
过去式的单词
have (has) had eat ate drink drank put put let let read read can could see saw meet met get got forget
贡井区帕尼回答：[答案] “could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做. He could have passed the exam, but he was too careless. 本来他能够通过考试,但是他太粗心疑问句:①Could you have done the exercises?你可能做...
郸滕17619231995问： could have done 的两个含义是什么? - ？
贡井区帕尼回答：[答案] “could+have+done”是虚拟语气,表示对过去事情的假设,意思是本来能够做某事而没有做. He could have passed the exam, but he was too careless. 本来他能够通过考试,但是他太粗心.
郸滕17619231995问： could have done什么意思 - ？
贡井区帕尼回答： 意思是:(当时就)可能做了;言外之意是,当时没做.这是虚拟语气的一种用法.举一个例句,就会更加清楚地了解这种用法: If we had had the money, we could have had a good time. 如果当时我们有钱的话,我们本能玩的很愉快的.这种用法,是“询问/谈论想象当时的情况或者是结果”.再如: If I had lost my job, I would have gone abroad. 假如我当时失业了,我就会到国外去了.(言外之意,我没有去,当时也没有失业.)
郸滕17619231995问： could+have+done的例句和could not+have+done的例句讲语法有点不懂,举个例子 - ？
贡井区帕尼回答：[答案] could+have+done和could not+have+done是两个概念 1、Could have done = would have done 表虚拟语气i.e:He would not die If I COULD HAVE HELPED him.如果当时我能帮助他,他就不会死.(COULD HAVE HELPED可以和WOULD HAVE ...
郸滕17619231995问： could have、should have、would have怎么从实质上区分它们?后面都加 done 的形式,很多时候分不清他们具体该如何使用, - ？
贡井区帕尼回答：[答案] 本来可以去做某事而没做 could(语气委婉)/can(正式) have done 本应该去做某事而没去做 should have done 本打算去做某事而没有做 would have 诸如此类的还有很多 must have done 还有他们的否定形式 cannot have done本不可以去做某事且...
郸滕17619231995问： could have done - ？
贡井区帕尼回答： should have done,must have done都表示该做的没做,是虚拟语气,用于表达与过去的事实相反.但should have done语气上没有must have done重.它们有细微的差别.给你2个句子比较一下: 1)You should not have told him such a bad ...
郸滕17619231995问： can have done的用法 - ？
贡井区帕尼回答： ＂can have done＂是一种情态动词的过去完成时,表示过去某个时间点或动作之前已经完成的动作.它是由“can”和“have done”两部分组成的.其中,“can”是情态动词,表示能力或许可;而“have done”是现在完成时的构成形式,表示过去某个时间点或动作之前已经完成的动作 .例如:- By the time I arrived, he could have finished his work.(到我到达的时候,他可能已经完成了他的工作.)- She can have left already.(她可能已经离开了.)
郸滕17619231995问： could have done与would have done 的区别是什么?？
贡井区帕尼回答： 答:同学你好,请看他们的区别 “would+have+done”虚拟语气,表示对过去事情的假设,意思是“本来会做”. 1. I would have told you all about the boy's story, but you ...
郸滕17619231995问： could/can have done在肯定句都可以翻译成什么,在否定句中都可以翻译成什么?请给个例子,简要说明下 - ？
贡井区帕尼回答： could have done表肯定时,用在虚拟语气中,意思是”可能已经...“ 过去完成时,表示过去本能做完却又未做完的事,如:If you had helped, I could have finished the work.意思:你要是帮了我,我可能已经完成工作了.can have done 则不能用于肯定句中,一般用于疑问句和否定句中,如:Can they have passed the exam? 难道他们真通过考试了? He can't have been to the city. 他不可能去过那个城市.
郸滕17619231995问： 问一些语法的问题有某些搭配,例如:could+have+done也有should+have+过去分词我想问,这里的done和过去分词有什么不同? - ？
贡井区帕尼回答：[答案] 没什么不一样 这里的done就是do的过去分次形式 在时态里只有have/has/had+done来表示现在完成时和过去完成时,你这里的是虚拟情况,用来表示与现在实际情况相反的意义 还是时态的问题 也可归类于情态动词的特殊用法
