Modal auxilaries
generally express speakers’ attitudes. Modal can express that speakers fell
something is necessary, advisable, permissible, possible, or probable. Each
modal has more than one meaning or use
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Expressing capability
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Can
Could
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She can do it : Correct.
But She cans do it : incorrect
I could swim five years a go
: correct
I could swam five
years a go: incorrect
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Expressing polite request
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May
Could
Can
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May I open the door?
Could you past the salt?
Can you lift the box?*
*Can you is
often used informally. It usually sound
less polite than could you
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Expressing necessity
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Must
Have to/Has to
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You must to talk to Hary
I have to go now!. I have a
meeting
She has to submit her assignment
*Must usually stronger than have to and can indicate urgency
or stress importance. Have to is used more commonly than must.
Have to = Has to and past form Had
to
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Expressing Lack of necessity
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Don’t have to
Must not
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You don’t have to study
tonight
You must not eat the food
*Don’t
have to: lack of necessity
Must not : prohibition ( do not do it )
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Expressing advisability
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Should
Ought to
Had better
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You should read the book =(“this is a good idea”) read the book
You ought to read the book
You had better see the
doctor
*Should and ought to has same meaning. The meaning ranges in
strength fro a suggestion
Had better implies a warning or a threat of
possible bad consequences.
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18 November 2014 at 02:56
pusing saya dari dulu kalo belajar bahasa Inggris bro,,,