MODALS

33. Introduction
34. ability: can, could, be able
35. certainty, possibility, deduction: can, could, may, might, must, will, should, ought to
36. advice, obligation, necessity: should, ought to, must, have to, have got to, need
37. offers, requests, permission, suggestions: can, could, may, might, would, must, shall, would you
mind
38. habit: would, used to

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