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Hela Posted 21 years ago
Grammar

Should VS Must

0 Dear teachers, 02br
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001) If I say: 02br
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00a) It's 7 p.m., he should be at home now. 02br
00b) It's 7 p.m., he must be at home now. 02br
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00Both modals can be used here, right? But what's the nuance between them? What's exactly the difference between ASSUMPTION and DEDUCTION. 02br
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002) But in the following example, these modals cannot be interchangeable and "SHOULD" can't be used here, right? What should would mean here: OBLIGATION? 02br
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00Phineas, as he heard this, remembered former days in which he had ridden about Saulsby Woods, and had thought them to be anything but hateful. “Is Saulsby shut up?” he asked. 02br
00“Altogether, and so is the house in Portman Square. There never was anything more sad or desolate. You would find Mr Kennedy altered, Mr Finn. He is quite an old man now. He was here in the spring, for a week or two — in England, that is; but he stayed at an hotel in London. He and Laura live at Dresden now, and a very sad time they 0100must have00 / 0100should have00.” 02br
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003) now, "MUST HAVE" can be replaced by "MUST BE HAVING" and the meaning wouldn't change. But what about changing "SHOULD HAVE" into "SHOULD BE HAVING"? Would it make a difference? 02br
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00Thank you very much for your help. 02br
00Hela 0-
  

Top answer

1. To me, a) shows less certainty than b)-- that's it. 2.

  • 1.
  • To me, a) shows less certainty than b)-- that's it.
  • 2.
  • 'What a very sad time they should have' makes no sense to me, because the speaker is very confident of his assertion.
  • If the situation were more conditional, 'should have' would work: 'what a very sad time they should have if they were trapped in Yellowknife all winter'.
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3 Answers
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1. To me, a) shows less certainty than b)-- that's it.

2. 'What a very sad time they should have' makes no sense to me, because the speaker is very confident of his assertion. If the situation were more conditional, 'should have' would work: 'what a very sad time they should have if they were trapped in Yellowknife all winter'.

3. 'Must be having' works to make 'must have'
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1. He [should / must] be home now.

What is the difference between assumption and deduction, you ask, meaning the difference between "should" and "must", I assume.
I would ask, "What is the difference between expectation and deduction?", but the question is still nearly the same.

Assumption or expectation, whichever we think of when we talk about the meaning of "should",
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Thank you, Mr Micawber and CJ. I quite understand the difference now. (y)

Kind regards,
Hela

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