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UNIT 2 - Coggle Diagram

- - - - ABILITY
        
        We use can, could, be able to and manage to to express ability
      - POSSIBILITY
        
        The modal verbs can, could, may, might, and be able to are used to express possibility
      - PERMISSION
        
        We use the modal verbs can, could, be able to, may and be allowed to to a express permission
    - - MUST/N´T
      - HAVE TO
      - DON´T HAVE TO
      - NEEDN´T
      - BE SUPPOSED TO
    - - MUSTN´T/ CAN´T
    - - MUST
      - CAN´T
    - - SHOULD
      - OUGHT TO
      - HAD BETTER
    - - MAY
      - MIGHT
      - COULD
    - - MUST
      - CAN´T
      - COULDN´T+HAVE+PAST PARTICIPLE