4.222 importance: 'should' and 'ought to'

If you feel that it is important or appropriate that something is said, you indicate that you are going to say it by using 'should' or 'ought to'.

• I should explain at this point that there are two different sorts of microscope.
• It should also be said that I learned a great deal from the experience.
• I ought to stress that this was not a trial.
• Perhaps I ought to conclude with a slightly more light-hearted question.