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
Expressing capability
|
|
Can
Could
|
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
|
Expressing polite request
|
|
May
Could
Can
|
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
|
Expressing necessity
|
|
Must
Have to/Has to
|
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
|
Expressing Lack of necessity
|
|
Don’t have to
Must not
|
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 )
|
Expressing advisability
|
|
Should
Ought to
Had better
|
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.
|
18 November 2014 at 02:56
pusing saya dari dulu kalo belajar bahasa Inggris bro,,,