Modal Auxiliary Verb Should

Should is a modal auxiliary verb. There is no –s in the third person singular.

Should is followed by an infinitive without to. Questions and negatives are made without do.

Note that should is the past equivalent of shall in indirect speech.


To express obligation

Should is often used to talk about duty or obligation. It can also be used to say or ask what the correct or best thing to do is.

Note that should is not as strong as must.

In questions, should is used to ask for advice or instructions.

To express probability

Should can express logical probability.

Sections in this article

Sentence agreement
Sentence agreement: plural subjects
Sentence agreement: collective nouns
Sentence agreement: indefinite pronouns

See also

Common mistakes in the use of nouns
Common mistakes in the use of nouns | Exercise 1
Common mistakes in the use of nouns | Exercise 2
Common mistakes in the use of nouns | Exercise 3

More CBSE English Grammar worksheets

Passive voice worksheet | Simple past tense
Passive voice worksheet | Past continuous tense
Passive voice worksheet | Simple future tense
Passive voice worksheet | Future perfect tense


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