Re: have sb doing sth??? Hello Newbie,
1. I can't have them playing round here
2. I can have them playing round here
For me, #1 suggests e.g. the impatient comment of a busy parent whose children are interrupting the work in hand.
#2 however doesn't suggest the welcoming, amiable comment of such a parent in such a situation. So I would say, no, the idiom requires the negative.
Not to be confused with another idiomatic use of "have":
3. "I want to go away next weekend, but I don't know what to do about the children." "Oh well, we can have them, if you like."
— where "we can have them" = "we can provide accommodation, etc. for them".
Or:
4. I had those children playing outside my window again this afternoon.
— which = "Those children were playing..."; but the "I had" suggests "mild annoyance".
As for other tenses, I would say no; or at least, I can't think of an example. It may be worth noting that the "I will not" in this structure has an implication of "I am unwilling", rather than simple futurity.
(I'd be interested to know what other members think.)
Best wishes,
MrP
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PS: sorry about the late reply, Newbie!
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Not a professional ESL teacher.
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