English Grammar : Auxiliary Verb 'Should'

Use of Auxiliary Verb 'Should' in English Grammar

Uses of Auxiliary Verb "SHOULD"

Should' is a modal verb used to politely express obligations or duties, to ask for or issue advice, suggestions, and recommendations, to describe an expectation and to express surprise."

'Should' is used to create a polite form that is more like a guideline than a rule.

'Should' is not past form of shall, but a past equivalent of shall. It is also used to create conditional sentences.

It is used in :
Simple present tense (should)
Present continuous tense (should be)

To express obligation, duty or correctness.
'Should' is used to indicate a kind of obligation, duty or correctness, often when criticizing another person.
    (a) To indicate Duty.
  • • I should be at work now.
  • • I should thank him for the help.
  • • The equipment should be inspected regularly.
  • • I think healthcare should be free for everyone.
  • • The university should provide more sports facilities.
  • (b) To express Obligation.
  • • He should have been more careful.
  • • You should be wearing your seat belt.
  • • I think he should pay for half the meal.
  • • He should be one of the best doctors in city.
  • (c) For Correctness.
  • • You should not drive so fast.
  • • You shouldn't have said that to her.
To express possibility or expectation.
We use 'should' to indicate that we think something is probable (we expect it to happen).
  • • He should be here any moment.
  • • Anjali should be in Chennai by now.
  • • I should be at college before 7:30.
  • • By now, they should already be in USA.
  • • I think this book should be interesting.
  • • The letter should get to you by tomorrow.
  • • Are you ready? The bus should be here soon.
  • • I really should be in the office by 9:00 AM.
  • • Let's call Raj. He should have finished work by now.
To advice or suggestion.
'Should' can be used to issue advice or suggestion in polite manner.
  • • You should come in time.
  • • You shouldn't have ordered that ice-cream.
  • • You shouldn't be drinking if you're on antibiotics.
  • • I think you should go to the North rather than South.
  • • You should focus more on your family and less on work.
  • • You shouldn’t drink so much cold-drinks—it’s not good for you.
To express surprise & annoyance.
'Should' is used to emphasize surprise at an unexpected situation or event.
  • • How should I know, where you kept the money?
  • • How should I know, where you park your bike?
  • • I am sorry that she should feel that way.
  • • It is surprising that he should have said that.
  • • It is funny that we should be stying in the same hotel.
'Should' is used for recommendation.
  • • You really should start eating better.
  • • You should visit the famous palaces in Dubai.
  • • You should get a good map of Dubai before you go there.
  • • When you go to Dubai, you should visit the Burj Khalifa.
'Should' for Asking the reason why:
We can follow the question word 'why' with 'should' to ask the reason for a certain obligation or duty.
  • • Why should men have all the fun?
  • • Why should my brother lie to me?
  • • Why should I have to pay for my brother?
  • • Why should they expect you to know that?
  • • Why should I try to hide anything from you?
  • • Why should not we be allowed to talk during class?
  • • Why should we give up now, when we’ve come so close to win the match?
'Should' in interrogative sentences:
We can also use should in interrogative sentences to ask for someone’s advice, opinion, suggestion or obligation:
  • • What should I see while I’m in New York? - ask for advise
  • Should she tell her boss about the missing equipment? - ask for opinion
  • • Is there anything we should be concerned about? - ask for suggestion
  • • Why should I clean our room today? - ask for obligation
Types of Auxiliary Verbs
(1) Auxiliary–cum–verbs.

"Auxiliary-cum-verbs" are :

These 11 auxiliaries are also used as verbs, therefore, they are called Auxiliary–cum–verbs. These are used to form Tenses. ( Please refer Tense Table).

(2) Pure Auxiliary verbs..

These 20 auxiliaries only support normal verbs, therefore, they are called Pure Auxiliary Verbs. They are also called Models or Model Auxiliary Verbs.

Related Topics :
Types of Noun in English Language
Types of Pronoun in English Language
Types of Verb in English Language
Types of Adverb in English Language
Types of Adjective in English Language
Kinds of Preposition in English Language
Types of Conjunction in English Language
Uses of Interjection words in English Language


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