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MUHI English; Empowering Your English

Task 14
Study the social function of modal should

Most modal verbs behave quite irregularly in the past and the future. Study the chart
below to learn how “should” behaves in different contexts.

Modal Use Expressions
Should Possive form
Recommendation, a) People with high choresterol should eat low-fat foods. (Present)
advisability b) David should have eaten low-fat food to prevent him from his heart
attack (Past)
c) You really should start eating healthy food. (future)
Negative form
a) Joe shouldn’t smoke too much. It’s not good for his health. (Present)
b) Joe shouldn’t have smoked so much. That’s what caused his health
problem. (past)
c) Joe shouldn’t smoke when he visits Ali next week. Ali hates when
people smoke in her house. (future)

Also use ought to
Should I should be at shcool before 7.00
Obligation We should return the video before the video rental store closes
“Should” can also express something between recommendtion and ob-
ligation.
“Be supposed to” express a similar idea and can easily be used in the
past or in negative forms.
Should Possitive form
Expectation a) Puput should be in New York by now. (present)
b) Pipit should have arrived in New York last week. Let’s call her and see
she is up to.
c) Rizal should be in new york by next week. His new jobs starts on
Monday.

Negative form
a) Puput shouldn’t be in New york yet.
b) Pipit shouldn’t have arrieved in New York until yesterday.
c) Rizal shouldn’t arrieve in new york until next week.
Also use: Ought to, supposed to

Present Expectation
It is used when we expect something to take place but you are not 100%
sure of that. We will use should/shouldn’t + V1 to represent the expec-
tation.
Your English test is at 9:00 am. You should get ready now.
Rizal has an important exam tomorrow. He should not play game online
now.
Past Expectation
In other hand, when we expect anything was supposed to happen in the
past. We have to use should have/ shouldn’t have + V3
I sent the gift a week ago. Ryan should have received it by now.
Rizal has an exam tomorrow. He should have completed his studies by
now.

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