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.

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Is “will never have been” valid English?

I was reading this phrase "will never have been" and I was wondering what grammatical structure does it belong to / is it grammatical? I'm not sure why but it sounds weird. What is the difference ...
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Must the word after “can” be present tense?

http://www.cs.utexas.edu/users/EWD/transcriptions/EWD04xx/EWD498.html: We can found no scientific discipline, nor a hearty profession on the technical mistakes of the Department of Defense and, ...
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“Dare” with and without “to”

To my surprise, there's a missing question about this particularly interesting verb, dare. All I know about it is the fact it can be in two forms, as an auxiliary (without to: "I dare not mention ...
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“Will be able to”

One of my friends told me that "will be able to" is a wrong phrase. Able doesn't fit with will. Is this true?
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How would you use “can” in a future sentence?

If you purchase this then you will be able to do that. How can I write the above statement using "can"?
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Rule for when to use “could” as a helper?

It would be helpful if you could provide us further details. Is the use of could wrong here? Should it be It would be helpful if you provide us further details. What is the rule when should ...
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Can I say “We don't must”, any alternative using a modal verb if I can't?

Let me explain. Suppose someone says "We must play a game now". I disagree, but only on that we have to do it. I shouldn't answer "We must not" because I would be saying that the game is not to be ...
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Using “will” twice in a sentence

Is it correct to use will twice in the following sentence? When you will come to see me we will have dinner together.
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What is the degree of strength of the verbs listed below dealing with rules/advice?

I used to have a list that showed the increasing strength of these words, but I seemed to have lost it. The words/phrases are: must/mustn't, should/shouldn't, have to/don't have to, can/can't, and ...
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Where were “should”, “shall”, and “must” in the 18th Century?

According to the following Google Ngram, in the U.K. the modals should, shall, and must were virtually missing from English writing during the 18th Century (I've added will for a comparison modal ...
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Use of “should have” in conditional sentences

In Return of the Soldier (1918) I came across what appears to be a conditional sentence: I never should have got this telegram if me and my husband hadn't been down there last September and told ...
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Explain the verb tense in “I wish I never woke up this morning”

This is from a song by Police, Darkness: "I can dream up schemes when I'm sitting in my seat I don't see any flaws 'til I get to my feet I wish I never woke up this morning Life was easy ...
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Past tense of “must” when meaning logical probability

I'm wondering how to say this sentence in the past tense: He must be very clever I have seen that the past tense of "must" is "have to" but it doesn't sound good to me to say something like "he ...
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Definition and meanings of “shall not”

I am looking for all the meanings of "shall not". Is it closer to "must not" or "might not"? In this example: The circuit-breaker shall not trip. does this mean must not happen or might not ...
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Is it better to say “How do I…” or “How can I…”?

Is it better to say "How do I do something?" or "How can I do something?"
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What's the difference between “should” and “could” (in the present tense)? [closed]

I am not referring to could as a past tense of can What is the difference between the following sentences? You should do it. You could do it.
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“Can hardly wait” versus “can't hardly wait”

This has been bothering me for a while and I'm finally at a forum where I feel like I might get an answer. I have heard people say "I can hardly wait for summer to get here" and I've also heard "I ...
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807 views

“Can I have one apple from your box?” vs “Could I have one apple from your box?” [duplicate]

Possible Duplicate: When do I use “can” or “could”? I was doing some reading on usage of can and could. I understand that can is used when asking for ability, and could for willingness. I ...
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“will be able to” vs. “can”

Consider the following: He will be able to do it. He can do it. They mean the same thing, right? Can "can" replace "will be able to" in any sentence? What is the difference, if anything? ...
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885 views

“How can X be” vs. “how does X can be”

I have a Spanish friend, who wrote the following sentence: "How does foo, bar, baz can be compared?" I corrected it to read: "How can foo, bar, baz be compared?" Other than the obvious, he ...
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Which one to state — “We would like to thank You” or “We thank You”

I am writing an official statement for plaques, in appreciation of an employee's contribution to the company. I am not sure which one to use: We would like to thank you for your unstinting ...
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Why do we say “was supposed to” for “should have”?

I was supposed to do my homework, but I went out clubbing instead. On a literal interpretation, supposed to suggests that other people (or indeed, myself) might have supposed (thought, imagined, ...
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Is “Can I have a cup of coffee?” polite?

Is "Can I have a cup of coffee?" polite? What if I ask a store employee, "Can I have something?"
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Geographical distribution of “shall”

In all of the places that I've ever lived (various parts of the western US), the modal verbs shall and will are almost perfectly synonymous, and will is preferred by an enormous margin. Shall is used ...
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Can “since” and “wouldn't” be used in the same sentence?

For example: Since it's raining, wouldn't it be a good idea to bring an umbrella? That sounds OK, but I'm not sure if it is. What about these alternatives? Since it's raining, isn't it a ...
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“won't” vs. “wouldn't”

Are these two words interchangeable? How do you know when to use one or the other? For some sentences it is easy to know which one to use, but not for others. The type of sentences that are difficult ...
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Are “should” and “if” interchangeable at the beginning of a sentence? [duplicate]

Possible Duplicate: A special use of “should”? If "should" comes at the beginning of a sentence, and the sentence is not a question, then can it be replaced with "if?" Is there any ...
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Is the word “will” some conjugation of the verb “to be”?

I have the impression that the phrase "will be" is using the verb "to be" twice. Is that correct?
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“cannot” vs. “must not”

It's pretty common, especially in video games' mission objectives, to state: A person X must not die. Would this be rapidly different if constructed like this? A person X cannot die.
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“Would” with a present meaning—is this correct?

A great example I can think of: "Please, leave! I would be alone!" With would meaning something like, "I want to be alone." Is this correct, or not? EDIT: To further clarify, I am not aiming ...
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“shall” vs. “will” [duplicate]

Possible Duplicate: 'shall' and 'will' Is there any difference at all between these two sentences? What will we talk about? What shall we talk about?
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Do serious grammarians endorse the “Can I”/“May I” distinction?

Just now, I wanted to ask a question that was something like, "Can I get a thorough list of all the parts of speech that a sentence can be broken down into?" But then a nagging voice appeared in my ...
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When should I use “can” and when should I use “will”?

This sentence talks about capability. I can never do that. This sentence talks about a choice. A personal preference maybe? I will never do that. Is this correct or can we use it ...
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How to use would or could in English? [duplicate]

Possible Duplicate: When should we use “can”, “could”, “will”, “would”? I am not a native English speaker and this would/could thing always ...
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Is there another way to say “needn't have done”?

I'm learning modal verbs now and get in trouble with "need" one. In my textbook it is said that: don't need to == needn't -- present simple didn't need to -- past simple needn't have done -- ...
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“Should” versus “would”

The NOAD reports the following notes about should and would: The traditional rule is that should is used with first person pronouns (I and we), as in I said I should be late, and would is used ...
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Is “should” ever used as past tense of “shall”?

Looking at the dictionary, I read that should has origin as past tense of shall. In the modern English, is should ever used as past tense of shall? ORIGIN Old English sceolde: past of shall.
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What are “modal-verbs”?

Are they the same as the "verbs-of-being" I was forced to painstakingly memorizetaught in Middle School? I.e. Be Am Is Are Was Were Being Been Have Has Had Shall Will May Can Might Could Should ...
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“Do you know where I might find them” VS “Do you know where I may find them” [closed]

What is the difference among the following questions: Do you know where I might find them? vs Do you know where I may find them? vs Do you know where I could find them? vs Do you ...
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127 views

“How does it compares”

I understand it should be How does it compare because the do has stole the s, but what is the reasoning behind it? I don't want to make the same mistake twice, so I feel I need to understand the ...
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How do I report speech containing “must not”?

What's the form for reporting speech that contains must not? I mean: I can't come to the meeting on Monday => She told me she couldn't come to the meeting on Monday. You must talk to me => ...
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Is “would” the past future tense of “will” or just a modal verb?

What's the difference: Would you give me some advice? Will you give me some advices?
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“It's important that he should know” vs. “… shall know”

Which sentence is right? It's important that he should know this. It's important that he shall know this. Is the shall/should auxiliary or modal verb?
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“Can” vs. “could” in asking a question [duplicate]

Possible Duplicate: When do I use “can” or “could”? I am a little bit confused about asking a question: Can you please tell me my next work? or Could you please tell me my next ...
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Substituting “do” after modals

Occasionally I hear native English speakers, typically those from outside the U.S., say things like: Are you going to the concert this weekend? Yeah, I might do. That is, rather than saying I ...
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Is either “can” or “could” more polite? [duplicate]

Possible Duplicate: When do I use “can” or “could”? I wonder which of the following is more polite: Can you please change my email address? Could you please change my email ...
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When should we use “can”, “could”, “will”, “would”?

Most of the people says I wish I could, I wish you would. Can't we use I wish I can, I wish you will? I'd like to know what the main difference between the usage of can/will and could/would is.
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“Can/may/will you help me with this?”

Which word to use when we ask for help? Some conditions: We know that the person asked is able to do it. We don't know if the person asked is able to do it.
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“It could/might/may be funny” — what is the correct usage?

What is the difference in meaning in these three sentences? it might be funny it could be funny it may be funny The answer was partially touched on in this post.
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Is “can not” unambiguous?

I always try to remember to use "cannot" when applicable as in "I cannot take an umbrella" (because I do not have one). I also thought that the problem with "I can not take an umbrella" was that it ...