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Unit 7.2

Should vs Ought To

Modal Verbs

Both should and ought to belong to the group of auxiliary modal verbs that have no meaning on their own but they modify the main verb, change its meaning and give more details about action.

Should and ought to are used to express obligation and duty through advice or recommendations.

Should and ought to are always followed by the infinitive of the verb. They have the same forms even for the third person singular.

Affirmative forms:

  • Should: Subject + should + infinitive + …
  • Ought to: Subject + ought to + infinitive + …

Negative forms:

  • Should: Subject + should + not + infinitive + …
  • Ought to: Subject + ought + not + to + infinitive + …

Interrogative forms:

  • Should: Should + subject + infinitive + …?
  • Ought to: Ought + subject + to + infinitive + …?
  • Should
    • We should go now. / We should to go now.
    • We shouldn’t go now.
    • Should we go now?
  • Ought to
    • We ought to go now. / We ought go now.
    • We oughtn’t to go now.
    • Ought we to go now?

Both these modal verbs have a very similar meaning and one can replace the other. They can be considered not to be as strong as must.

However, should is used much more often and it is less formal than ought to. Ought to is almost never used in interrogative and negative form.

The modal verbs should and ought to express obligation or advice. They are always followed by infinitive.

They differ in usage despite both having similar meanings.

  • Should is used more often and is less formal.
  • Ought to is very uncommon in everyday use, especially in its negative and interrogative form, and is generally more formal.

For example:
—  “You should apologize.” / “You ought to apologize.

Let’s revise this content within the {Form} section. Take a look at the {Example} section that shows its use within a context.

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