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how to use model auxiliaries

Asked by sbhel72_in 7th March 2015, 7:24 PM
Answered by Expert
The verbs can, could, will, would, shall, should, may, might, must, and ought are verbs which help other verbs to express a meaning. These are called modal verbs. 
  • Modal verbs are NEVER used with other auxiliary verbs such as do, does, did etc. 
  • The negative is formed simply by adding "not" after the verb. 
  • Questions are formed by inversion of the verb and subject.
He should not talk like that.
Could you pass me the salt and pepper, please?
  • You can never add an "-s" or "-ed" to a modal verb to change its form.
  • Except for ought to, modal verbs are NEVER followed by to

Modal verbs are used to express doubt, certainty, possibility and probability, obligation and permission (or lack of these)

I hope the above information helps. 

Happy Studying! 

Answered by Expert 9th March 2015, 11:00 AM
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