|Home » Articles » English Grammar » Primary auxiliary verbs. Modal auxiliary verbs|
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.
|Category: Primary auxiliary verbs. Modal auxiliary verbs | Added by: Teacher_Koce (2014-01-05)|
|Views: 737 ||
|Total comments: 0|