• ‘Deduction’ is guessing how true we think something is.
  • We deduce this truth from the available information.
  • We usual use modal verbs to express how certain we are about the possibility.
  • It is similar to drawing a conclusion.

‘It cannot be true’ (modality)

Point 137 in MODALITY is defined as: negative forms of ‘can’t’ and ‘cannot’ to guess, predict and deduce. This point is an extremely difficult point to locate because it heavily relies on usage.  The use of ‘can’t’ is A1 by default, but not ‘cannot’ which has not been given a level in the EGP.  We …

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