Modals of possibility and certainty

1
Modals of possibility and certainty

• MAY / MAY NOT / MIGHT / MIGHT NOT / COULD ?
  present or future possibility
• We might have nothing in common.
• They could be on the train now.
• CANT ? when we believe or guess that something
  is impossible
• He cant be boring he is in a band.

2
Modals of possibility and certainty

• MUST ? when we are certain something is true
• He must be a nice person if he is Jeffs
  friend.
• MUST / CANT ? when we make logical deductions
• Linda cant be at home because she didnt
  answer the phone.