mustn't

English grammar help. Grammar questions from ESL learners

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navi
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mustn't

Postby navi » Fri Oct 15, 2004 9:21 pm

Can one use:
1-You mustn't drink so much and take some exercise.
instead of:
2-You mustn't drink so much and you must take some exercise.

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Alan
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Postby Alan » Sat Oct 16, 2004 5:45 am

Not really, unless you inserted a comma and made it

You mustn't drink so much, and take some exercise!

i.e. an unwieldy combination of an indicative (mustn't) and an imperative (take) linked by 'and'.

Otherwise you need #2.

googl
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Postby googl » Wed Oct 20, 2004 8:25 am

Dear Alan,

why a comma here is needed? (I thought that we never put a comma before 'and' in the sentences like X does sth. and Y does sth., why here?)

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Alan
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Postby Alan » Wed Oct 20, 2004 1:20 pm

No, we don't put a comma normally, because normally we join clauses of the same type. In this case, however, the clauses are very dissimilar.


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