Verb Types: Modal verbs-Obligation & Advice*

Verb Types: Modal Verbs-Obligation & Advice

April 4, 2019

Native English Instructor

Written by Douglas Shaw

Modal Verbs for obligation & advice:

Using these modals with the main verb (Infinitive) to express obligation and & advise.

shouldshould havemusthave to

Note:

Using the word “should” expresses weaker obligation than the words “must” and “have to”.

Using Modal Verbs – Express Obligation & Advise

Using these modals with the main verb (Infinitive) to express obligation and & advise.

shouldshould havemusthave to

Note:

Using the word “should” expresses weaker obligation than the words “must” and “have to”.


Positive

Using “should” and “should have” with the main verb form of (be / go / do) becomes….

should beshould goshould do

e.g. – Should

Using “should” is most commonly used to make recommendations or give advise – expresses a weaker obligation.

  • You should tell her the truth , why you forgot the wedding.
  • You shouldn’t smoke, it’s bad for you.

e.g. – Should have

Using “should have” is to express unfulfilled obligation in the past.

  • You should have completed the report for tomorrow’s meeting.

Negative

e.g. – Shouldn’t have

  • I’m sorry for shouting at you, I shouldn’t have raised my voice to you.

Note:

Keep in mind, using “should” or “should have” expresses a weaker obligation. These modals are also referred to expressing a recommendation or moral obligation.


Most modal verbs act quite irregularly in the past and future. There are three different contexts (Recommendation, Obligation, Expectation).

Recommendation – Should

e.g. – Positive

  • You really should start eating better.
  • You should stop smoking, it’s bad for you.

e.g. Negative

  • You shouldn’t eat so much fried food. It’s bad for you.
  • You shouldn’t smoke so much. It’s not good for your health.

Obligation – Should

e.g. – Positive

  • I should be at the airport before 7:00 a.m.
  • We should pay the cable TV bill before they shut it off.

e.g. – Negative

  • No negative forms.

Expectation – Should

e.g – Positive

  • Irina should have arrived in Hong Kong by 3 o’clock this afternoon. Let’s call her and see where she is now.
  • I should be in Hong Kong by next week. My new job starts Wednesday.

e.g. – Negative

  • Irina shouldn’t have arrived in Hong Kong by 3, because her flight was delayed 2 hours.
  • I shouldn’t be in Hong Kong until next week.



Series Navigation<< Verb Types: Modal Verbs-Probability & Certainty*Verb Types: Modal Verbs-Willingness* >>