作业帮就是can't have seen 我觉得它的结构应该跟couldn't have seen 一样,而只是时态不一样而已
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/20 05:27:08
就是can't have seen 我觉得它的结构应该跟couldn't have seen 一样,而只是时态不一样而已,你认为囊 还有和couldn't see的区别,
一、虽然 could 是can 的过去形式,但是也可以表示现在,取代 can,只不过是在可能性上比 can 略差一些.
二、can't have seen 和 couldn't have seen 在一定得条件下可以互相替换,都是表示说话者当前对过去情况的否定推测.而 can't see 则是说话者对眼下情况的否定推测推测.
三、在表示逻辑判断时,常用下列三种猜测形式：
1.对现在的或然猜测：may + 动词原形
2.对过去的必然性的肯定猜测：nust have + 过去分词
3.对过去的必然性的否定猜测：can't have + 过去分词
如下题就是对过去的必然性的否定猜测：
You can't have seen Kate at the meeting last week; she has been on holiday in London for a month.
其中的判别标志就是句子中有 last week.
二、can't have seen 和 couldn't have seen 在一定得条件下可以互相替换,都是表示说话者当前对过去情况的否定推测.而 can't see 则是说话者对眼下情况的否定推测推测.
三、在表示逻辑判断时,常用下列三种猜测形式：
1.对现在的或然猜测：may + 动词原形
2.对过去的必然性的肯定猜测：nust have + 过去分词
3.对过去的必然性的否定猜测：can't have + 过去分词
如下题就是对过去的必然性的否定猜测：
You can't have seen Kate at the meeting last week; she has been on holiday in London for a month.
其中的判别标志就是句子中有 last week.
就是can't have seen 我觉得它的结构应该跟couldn't have seen 一样,而只是时态不一样而已
T‘have seen what I have seen,see what I
can’t / couldn’t have
You couldn't have seen such an animal, for they have already
so i have seen this film t
She mustn't have seen you的意思是什么?
can't help but do 和couldn't help but do 只是时态的区别吗?
---Hi lucy!I can't find my English book,have you seen it___?
英语翻译Pure --Fool's Garden I can't understand what I have seen
根据首字母填空:You can`t speak English i____ you have never seen or
1.Have you seen my dictionary?I can't find it anywhere
hi bob!i can't find my history book .have you seen it___?