could、would + have +过去分词，表达的是一种假设情况，用此来谈及过去没有发生的事情。could have ...
“could”和“would”的使用区分在于它们强调的方面不同：“could have + 过去分词”强调过去有执行某事的能力但并未执行。“would have + 过去分词”强调意愿或可能性，通常与“if”条件句连用。例如：“I could have been there on time if I had left home earlier.”（如果我早点离开家，我本...
would have beenwould have implies less or no control over the situation. “Our project would have been great if he showed up to class.” You could not control your classmate showing up to class. Could have means you did have control over it. “Our projec
如果从虚拟语气的角度来讲,他们的用法是一样的,都可以用来表示主句是与过去事实相反的一种情况,但would是最常用的,could往往表能力多一点. 结果一 题目 would have been与could have 答案 如果从虚拟语气的角度来讲,他们的用法是一样的,都可以用来表示主句是与过去事实相反的一种情况,但would是最常用的,could往...
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英语语法1.could have been/would be是什么用法,都可以表示虚拟语气吗?2.the editor was getting impatient.这是系表结构的进行时态吗?.如果could/must have been+人, 答案 1.你说的是虚拟语气中的两种用法a.与现在事实相反的虚拟语气即if从句的动词用过去时,主句则用过去时助动词.例:If i were rich,i wou...
i knew u have been hurt, i would have been seeing u earlier. (未完成的意愿）可以看到有些情况里，一句话，情态动词的逻辑判断和主观能动的作用，可以同时体现出来，并不冲突。上面有含义交集的地方是：粗斜体字，当 could have和 would have 仅做逻辑判断的时候，只是肯定性的程度不同而已，...
一、 “must+have+done”表示对过去事情的肯定推测,译成“一定做过某事”,该结构只用于肯定句。 1. It must have rained last night, for the ground is wet. 昨晚一定下雨了,因为地面还是湿的。 2. You must have been mad to speak to the servant. 你和仆人说话,一定是发疯了。 二、 “can't+have...
I wouldn't help you.“恐怕我帮不了你。”（3）在虚拟语气中意义不同：I could have helped you.“我本来能够帮你，却没帮你。”I would have helped you.“我本来打算帮你，但没有帮你。”would 更能表现出人心里的意愿,常翻译为"愿意";而could更倾向于”有能力”.would在向别人提出问题...