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Modal verbs (such as can, could, shall, should, will, would, may, might, and must) combine with verbs in the bare infinitive to express information about the verb such as possibility or necessity.

1 vote
0 answers
359 views

are the sentence "He couldn't be lost now" "He couldn't have been lost yesterday" (expressin...

Most websites say that must, might, may, could, can't can be used to make a guess of something or to deduce something. British Council says: must We use must when we feel sure that something is tru …
Tom's user avatar
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0 votes
2 answers
1k views

Is "We could see the whole of London." wrong? [closed]

Ok, This site says: When we talk about ability, we mean two things. First, we mean general ability. This is something that once you have learned you can do any time you want, like being abl …
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2 votes
1 answer
6k views

So, "might have been sleeping" (Modal perfect continuous) corresponds to past continuous, pr...

"Modal + have + PP" refers to the past But it is quite ambiguous!! What does "the past" mean? Simple Past, Present perfect, Past perfect all refers to the past. So the question is: Does Modal + …
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1 vote
1 answer
21k views

"MODAL + HAVE BEEN + ING VERB" expresses an ongoing action which finished or lasts from the ...

There is a missing knowledge of Tenses in Modals in English grammar textbooks. Ok, we know that "Present Perfect Continuous" is used to express a duration from the past until now. Ex: They have be …
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1 vote
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So, "might have been sleeping" (Modal perfect continuous) corresponds to past continuous, pr...

Finally, I can find the answer in here
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0 votes
2 answers
3k views

"should be studying" or "should have been studying" when the opportunity is lost by 50%?

Ok, for a lost opportunity, we use "should have + PP" Ex: You have just missed the train because you woke up late. You should have gone to bed early yesterday. But What about when the opportunity ha …
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2 votes
3 answers
2k views

What are the differences between "May" & "Might" / "May have" & "Might have" in strict English?

The more I learn about Modals, the more confused I get. English Modals are very unstructured or adhere to a rigorous structure & that makes foreigners hard to understand them. According to oxforddicti …
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1 vote
1 answer
2k views

So, we don't have "can have + PP" in English, do we? but we do have "can't have +PP", don't we?

Modal verbs like can, could, may, might,.... are very difficult & arbitrary. According to this site: can't have + past participle: I'm fairly sure this wasn't true Ex: She can't have stayed …
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8 votes
1 answer
11k views

How are "might" and "may" used in the past?

OK, we all know that epistemic modals such as may and might can be interchanged to express possibility in present & future For example: he might be late, and he may be late are almost the same. Sour …
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