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Chineselindsay Posted 17 years ago
Grammar

Must in Tag Question.

Dear teachers,
He must be a teacher, mustn't he?(I know this sentence is correct).
He must be a teacher, isn't he?(Is it correct?)
Should we have to use 'must' in question tag if we use 'must' in the previous sentence.
Is there any special situation?

Thank you in advance.^_^
  

Top answer

hey, when we use must with the idea of obligation we use mustn't to make the tag question when we use must with the idea of assumption/deduction we use another auxiliary verb do make the tag qusetion such as to be or do/does. examples: You have worked a lot. You must be tired, aren't you?

  • hey, when we use must with the idea of obligation we use mustn't to make the tag question when we use must with the idea of assumption/deduction we use another auxiliary verb do make the tag qusetion such as to be or do/does.
  • examples: You have worked a lot.
  • You must be tired, aren't you?
  • She must be the new teacher, isn't she?
  • Wow, Robert is a flight attendent, he must fly a lot, doesn't he?
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16 Answers
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hey,


when we use must with the idea of obligation we use mustn't to make the tag question

when we use must with the idea of assumption/deduction we use another auxiliary verb do make the tag qusetion such as to be or do/does.

examples:

You have worked a lot. You must be tired, aren't you?

She must be the new teacher, isn't she?

Wow, Robert
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Thank you,rafaelinrio. I understand.^_^
I also have a little problem with answering the Tag question.

You have worked a lot. You must be tired, aren't you?
Yes, i'm very tired.(agree with the speaker)
No, i don't tired.(disgree with the speaker)

She must be the new teacher, isn't she?
yes, she is.(agree with the speaker ,means she is a new teacher)
No, she
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I can't really agree with this. Although I don't think I've ever heard an American say "mustn't he" you really need the verbs to correspond. If you wanted a tag, I'd be more likely to say "He must be a teacher, right?" or "I bet you're tired, aren't you." I know there's been a thread on this already - I'll see if I can find it.
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Well, there are a few threads out there. There's this one, for example: Anyway, I wouln't mix the "must" and "to be."
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Thank you very much G G. ^_^
I won't use must in Tag question too. But there always have exams. ^_^
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You have worked a lot. You must be tired, aren't you?
Yes, i'm very tired.(agree with the speaker)
No, i don't tired.(disgree with the speaker)

In this case as verb to be works as the auxiliary verb of the tag question, you've got to use it in the answer, then you have 2 possible answers:
Yes, I am.
No, I am not.

Concerning the other examples you gave,

N
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Yeah, but someone told me that 90% of question tags are Emotion: stick out tongueositive verb-negtive question tag verb or negtive verb-positive q
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Hi Lynn,

Don't confuse the response with the tag in terms of negative/positive.

It's going to rain, isn't it? (You expect it is going to rain.)
It's not going to rain, is it? (You do NOT expect it to rain.)

The person can respond to either one with either of the following: No, I checked the forecast, and it's not supposed to rain. Yes, looking at the clouds, I'm
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Thank you again, G G.
It's more clear now.^_^
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sorry to ask that when we make a sentence for future weather forecast and we use a sentence like this...
it must be a rainy day tomorrow, mustn't it be? plzzzzzz give me answer that is it right or wrong

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