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Unit 7.2

Ought To: Modal Auxiliary Verb

Modal Verbs

A modal verb is a type of auxiliary (helping) verb that has no meaning on its own but it modifies the main verb, changes his meaning and gives more details about action.

Ought to is a type of auxiliary modal verb used to express obligation and duty through advice or recommendations.

Ought to has always the same form even for the third person singular, and we find this structure in its three forms.

Affirmative

Its structure, in the affirmative form, is:
Subject + ought to + verb + …

PERSONOUGHT TOVERB
I/Youought towork
He/She/Itought towork
We/You/Theyought towork

Negative

Its structure, in the negative form, is:
Subject + ought + not + to + verb + …

  • Short version of the negative form is: oughtn’t.
PERSONOUGHT + NEGATIONVERB
I/Youought not towork
He/She/Itought not towork
We/You/Theyought not towork

Interrogative

Its structure, in the interrogative form, is:
Ought + subject + to + verb + …?

OUGHTPERSONTOVERBQUESTION MARK
OughtI/youtowork?
Oughthe/she/ittowork?
Oughtwe/you/theytowork?
  1. Weaker obligation/duty
    • You ought to apologize.
    • Smoking oughtn’t to be allowed at school.
    • You ought to get the diploma soon.
  2. Advice
    • You ought to work out more.
    • He oughtn’t to memorize the rule, it’s better to understand it.
    • Ought we to read the syllabus of the course?

Outght to can be considered not to be as strong as must. We use ought to when:

  1. We indicate weaker obligation or duty;
  2. We give and ask for advice (recommendation).

The modal verb ought to expresses obligation or advice. It can be considered to not be as strong as must.

The structures are:

  • Affirmative: Subject + ought to + verb + …
  • Negative: Subject + ought + not + to + verb + …
  • Interrogative: Ought + subject + to + verb + …?

For example:
— Affirmative: “You ought to do your homework to understand the subject.” = Ought to is used to give a recommendation.
— Negative: “You oughtn´t to do your homework to understand the subject.” = Oughtn’t is used to give a recommendation.
— Interrogative: “Ought you to do your homework to understand the subject?” = Ought? is used to ask for a confirmation of a recommendation.
♦ “You must do your homework or you will fail the class.” = Must expresses a stronger obligation.

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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Ought To: Modal Auxiliary Verb Copyright © 2018 by My Language Skills. All Rights Reserved.