Results 1 to 3 of 3
  1. #1
    Unregistered Guest

    teacher please help - must have been

    John said there was not much traffic on the road that day but one driver suddenly appeared and he struck that vehicle. He believes that driver must have been going very fast.

    thank you

  2. #2
    billmcd is offline Key Member
    • Member Info
      • Member Type:
      • English Teacher
      • Native Language:
      • English
      • Home Country:
      • United States
      • Current Location:
      • United States
    Join Date
    Mar 2009
    Posts
    3,485

    Re: teacher please help - must have been

    "Must have been" is used in your example as a conclusion based on some perception or real or imagined evidence.

  3. #3
    bertietheblue is offline Senior Member
    • Member Info
      • Member Type:
      • Other
      • Native Language:
      • English
      • Home Country:
      • UK
      • Current Location:
      • UK
    Join Date
    May 2010
    Posts
    577

    Re: teacher please help - must have been

    must be driving very fast = based on the evidence, I think he is driving very fast - PRESENT USAGE, CONTINOUS FORM ('I am doing')
    must have been driving very fast = based on the evidence, I think he was driving very fast - PAST USAGE, CONTINOUS FORM ('I was doing')

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •