Shall, Should, Ought to
To Offer of Assistance or Polite Suggestion (When you are quite sure of a positive answer)
Shall + subject + base form of the verb
- Shall we go for a walk?
Note: Shall is only used with I or we. It is used instead of will only in formal English.
To Offer of Assistance or Polite Suggestion (When you are not sure of a positive answer)
Should + subject + base form of the verb
- Should I call a doctor?
A Prediction or Expectation that Something Will Happen
should/shouldn’t + base form of the verb
- The proposal should be finished on time.
- I shouldn’t be late. The train usually arrives on time.
To Give Advice
should /
ought to + base form of the verb
- You should check that document before you send it out.
- You ought to have your car serviced before the winter.
To Give Advice (about something you think wrong or unacceptable)
shouldn’t + base form of the verb
- James shouldn’t teach him words like those.
No hay comentarios:
Publicar un comentario