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Unit 5 : Vocabulary - Coggle Diagram

- - - - Endanger
      - Enlarge
      - Entrust
      - Enable
      - Enclose
      - Ensure
      - Entitle
- - - - should / shouldn't
      - ought to : not go with Question and Negative tense
      - had better (not) : not go with Question tense, or warning
    - - Must : internal
      - Have to : external
      - Need to : external
    - - don't have to
      - don't need to / needn't to
  - - - should (not) have + VP2
      - Ought to have + VP2
    - - had to + V
      - Needed to + V
    - - didn't have to + V : did not happen
      - needn't to + VP2 : it happened
      - didn't need to + V : it might happened or might not