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ESL forum >
Ask for help > modals of obligation
modals of obligation
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mr.dgdln
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modals of obligation
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I �m shocked to be confused on this topic. my confusion started when I started getting prepared to teach modals of obligation "should / must / have to" an hour ago.
first of all , I �m afraid I was misspelling the positive form of "must"
mustn �t or musn �t ? which one is correct?
(I searched on the internet I get both results. but grammar books write "mustn �t" )
I have two more questions :
1. In England, you _________ drive on the left. ( must/ have to)
2. In Polan in wintertime it is very cold. So people ______ wear thick clothes. ( must/ have to)
I need your urgent help. My lesson is starting in 3 hours. So I need to be ready by then.
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27 Oct 2009
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Zora
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The correct contraction is "mustn �t".
And I would say:
1. mustn �t - because it �s a law and must goes with laws, rules and social obligations.
2. it could be both here... but I �d go for "have to" since it �s a strong suggestion as to what a person should do.
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27 Oct 2009
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Saskush
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I agree with Zora, It �s mustn �t.
Must is an obligation if you don �t do it you will face bad concequences and have to is more like a suggestion, because if you don �t do it the cosequences are not as bad or none at all. It �s your choice.
Bye
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27 Oct 2009
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ishu
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As far as I �m concerned, "have to" is used when there is an external obligation and "must" is used when there is an internal one. Like "You have to keep quiet in a library." and "I must wash my hair before I go to bed."
In the sentences you provided, I �d say:
1. mustn �t - because the negative form applies to both internal and external obligations
2. must - because it �s strong advice as in "It �s a great book. You must read it."
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27 Oct 2009
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GIOVANNI
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I was taught that with must it is a law or obligation or something you impose on yourself.
Eg. You must wear a seatbelt. The law states this.
I must clean my room, it is dirty.
Have to is something that someone imposes upon you.
Eg. Mary, you have to clean you room today.
However, I find in conversational English that many people use have to more than must.
I sent you something on this. |
27 Oct 2009
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mr.dgdln
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Thanks all of you for your kind help.
special thanks to _ladybird_ for your explanation. it was very sensible of you.
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27 Oct 2009
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