The words ought to and should have the same meaning.
Study the following sentence.
What ought I to do?
This means the same as?
What should I do?
Rewrite the following sentences using ‘ought to’.
1. You should go home now.
2. You should consult a doctor.
3. She should be here soon.
4. I should leave now.
5. You should help your mother.
6. Where should I go?
1. You ought to go home now.
2. You ought to consult a doctor.
3. She ought to be here soon.
4. I ought to leave now.
5. You ought to help your mother.
6. Where ought I to go?
Modal auxiliary verbs are usually followed by an infinitive without to. Ought is an exception to this rule. It is followed by an infinitive with to.
You should wait for me. (NOT You should to wait for me.)
You ought to wait for me. (NOT You ought wait for me.