I was a bit slow on one thing, which is picking up on your perhaps unintended admission that these modal verbs do have past tense function. I certainly didn't pick up on that when I initially read your post. In fact I didn't pick up on it till I was well into responding. Otherwise I might not have been as hard on you. I apologize. (I'm too tired to revise it now.)I also didn't defend my position by "saying I know more than all the dictionary people who collectively decided ..."
These are all ideas borne of your imagination.
Not at all. Although you didn't use those words, what you said carries that meaning.
But you are not only out of step with the dictionaries. You are out of step with the many many native speakers who use auxillary verbs in the past tense.
There are also many websites that teach English, and they teach that some modals carry past tense function.
I admit that some of those websites may be of lesser quality, but certainly not all of them are.
And possibly more important, reputable ESL schools teach that some models are past tense forms, at least as part of their role.
In order to defend my position, I've shown, from language, a number of things that simply do not lend support to the notion that modal verbs have tense. I saw nothing convincing.
Albeit old:It finds no support in language use. Modal verbs can act in every time situation because their job isn't to carry tense; their job is do what modals do, carry a speaker's/writer's emotive feelings into a sentence. You're trying to drastically restrict the role of those verbs, and you're just not in touch with reality.
2006 new:I believe you are in denial here.
Modals are not always emotive. They are also auxillary verbs.
When I was young, I could run a mile without stopping. (not '...I can run a mile....')
Albeit newest responses:That they are, modal auxiliary verbs.
That's at least partially emotive, 2006. It might be bragging, it might be fact, but it still represents that person's opinion. Heck, you can say that opinion is half of what every person says in their whole life.
In your atempt to deny the reality of past tense function, you're practically claiming that modality is the whole purpose of auxillary verbs. Modality is only one of the features of auxillary verbs.
'can', of course not; as I've already noted it's because it doesn't work semantically.
What absolute rubbish nonsense! "can" doesn't work because you need the past tense "could"!
You can not say 'When I was young I can run a mile...'.
It has nothing to do with semantics. Do you realize how foolish you sound?
Neither does would or should or might, all purported past tense. Nor do will, shall ormay work. Why, because only 'could' holds the normal neutral meaning of ability in the past.
So you just admitted that "could" has a past tense function. And it has nothing to do with meaning; it has to do with tense.
That doesn't stop 'can' from performing one of its jobs, a strong denial of someone suggesting they had a past ability that they didn't. ??
A: When I was young, I could run a mile without stopping.
B: He's a liar. He had polio as a youth. He can't have done that!
Most people would say 'He couldn't have done that.' (past tense of "can")
2006 replies:I tried to keep this very short in the hope that this thread will soon wind down. It has become cumbersome to follow because of its length, and I think you will agree that we both have already spent too much time here.
We don't seem to be convincing each other, but are presumably continuing because others are following it.
[If this in fact will be my last post, I can later say 'That would happily be my last post.' (past tense "would")] (= That happily was my last post.)
Albeit newest responses:That isn't an example of past tense 'would'. '
Firstly, my word order can be improved to 'Happily, that would be my last post.' (= 'Happily that was my last post.')
That would happily be my last post." does NOT equal "That was my last post". No one would come out with "That would happily be my last post" as a mormal neutral way to describe a past event, to say, "That was my last post". Says who? It seems perfectly normal to me.
What that is is an example of 'would' operating in a past time situation, which is much different, both semantically and syntactically than 'would' as a past tense. Oh? How is it different? It's not. Anyway you have practically admitted that "would" has a past tense function.
And I mentioned before that keeping the same syntax as regular verbs have is not important. Why should it be important? And there is no semantic difference, at all!
'could' & 'would' have some special tasks in English that they alone perform. In order for you to remark, "'That would happily be my last post", you'd be making use of a special condition of 'would'. What special condition? Does it have a name?
That doesn't automatically make them past tense. Automatic or not, they are. It's only natural that HISTORICAL past tense forms would keep these jobs but again, it's semantic, not syntactic. No problem.
'should' hasn't kept any of these "special" uses, These so-called "special uses" are a big part of the function of "could' and "would".yet I believe you contend it too is a past tense.
Yes, it can be. It's not as commonly seen as with "could' and 'would", but that is largely because "shall" isn't used a fraction as much as "can" and "will" are. So naturally there is much less chance for "should" to function in the past tense role.
addendum
I just notice your most recent post. You talk about "prescriptivists". It's not about that at all. People do use and teach the past tense function of modal verbs every day. It's actually descriptive.

English Teacher