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5
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5answers
955 views

What modal verbs do natives use nowadays?

We are being taught English by a native speaker from Alaska. He states that many of modal verbs we were taught are outdated and have been replaced. E.g.: We must ➙ We have to May I ...
0
votes
3answers
40 views

What does “It can't have been her you saw yesterday: she is abroad.” become in indirect reported speech?

What does the sentence: It can't have been her you saw yesterday: she is abroad. become in indirect reported speech? He told me it… can't have been (?) couldn't have been (?) … her I had seen ...
0
votes
1answer
42 views

For a past situation: simple infinitive or perfect infinitive after “ought to”?

In Michael Vince's New First Certificate Language Practice, page 92, exercise 2, sentence number 10, you are given the sentence: "I thought that you would know better!" which has to be re-written ...
2
votes
4answers
217 views

Why is the same modal auxiliary, 'may/might' used to ask permission and for uncertainty?

"May I go to the bathroom?" and "I asked if I might go to the bathroom." The modal auxiliary 'may/might' is used to ask permission. "He may not have understood your question." and "He might ...
2
votes
3answers
1k views

can't have been vs. couldn't have been

I don't understand when and why to use can't have been. It seems so strange to me.
0
votes
1answer
405 views

Must (Past Obligation Interrogative) “Must you have eaten all the food?” [closed]

Is the question "Must you have eaten all the food" correct when used in the past obligatory sense? The best examples I can find are quite ambiguous. "Must He have been less than perfectly kind to ...
1
vote
0answers
48 views

Modal verbs (must or to have to) [duplicate]

As far as I know, When you speak about yourself and you refer to your own feeling of necessity of doing something you use must and not to have to. If I am talking about outside command or necessity ...
3
votes
1answer
619 views

Usage of infinitives in this sentence

In my academics I learned that we use infinitives (to + verb 1st form). So I was surprised when someone told me this sentence is incorrect. I am not able to figure it out why this sentence is ...
-1
votes
2answers
110 views

Should the statement after “then” be followed with modals?

Consider the following: If you were to buy this, then ask me. Or should it be: If you were to buy this, then you would need to ask me. Is the use of would necessary here? If we go with the ...