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Este Cmap, tiene informaciĆ³n relacionada con: Must - Can't, Must have (done) - Can't have (done) Example 1) The phone rang but I didn't hear it. I must have been asleep. 2) Tom walked straight into a wall. He can't have been looking were he was going., To say that we feel sure something is not possible Example You've just have lunch, You can't be hungry already,., Must - Can't Must To say that we feel sure something is true, Must - Can't In the past Must have (done) - Can't have (done), To say that we feel sure something is true Example You've been travelling all day. You must be tired., Must - Can't Can't To say that we feel sure something is not possible