Modal verbs include can, could, may, might, must, shall, should, will, and would.

Form

  • subject + modal verb + infinitive

Positive

Subject Modal Verb Infinitive
I should go.
You
He
She
It
We
They

Negative

Subject Modal Verb Infinitive
I should not / shouldn't go.
You
He
She
It
We
They

Question

Positive

Subject Modal Verb Infinitive
Should I go?
You
He
She
It
We
They

We never add endings to modal verbs like -ed, -ing, or -s.

  • He should eat. - Good
  • He shoulded eat. - Bad
  • He shoulding eat. - Bad
  • He shoulds eat. - Bad

Use

Modal verbs are special verbs that give more information about an action. In this unit, we will review modal verbs must and should. We use must and should for obligation and advice.

Must: Advice


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Exercise

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