the use of commas

  • sentence must have subject, verb and object
    • example:
      • S:{I} V:{know} O:{that he will pass the exam}.
      • no comma after {know}!
        otherwise you get two incomplete sentences:
        • I know
        • that he will pass the exam
  • explanating clauses
    • example:
      • My son, who lives in NYC, is an attorney.
        • means: My only son is an attorney. By the way, he lives in NYC.
      • My son who lives in NYC is an attorney.
        • means: One of my sons lives in NYC. He is an attorney.
    • example:
      • I had a cocktail, which was unusual.
        • means: It is unusual for me to have cocktails.
      • I had a cocktail which was unusual.
        • means: The cocktail was unusual.

tenses

past

  • when something is clearly over
  • if there is a time reference
    • even if only in the speaker’s head

present perfect

  • leading up to the present
    • example:
      • I haven’t been there yet.
  • has result in the present
    • example:
      • Why are you so sad? Because my girlfriend has left me.
  • if takes place during time interval
    • example:
      • I’ve phoned all morning.
  • when time is unimportant
    • example:
      • Have you ever eaten …?
  • present perfect vs. past
    • continuous vs. discrete
      • examples:
        • Have you ever seen …?
          • means: Have you seen it at all?
        • Did you ever see …?
          • means: in one of the occassions in which that was possible?
    • open vs. closed
      • examples:
        • She has suffered all her life.
          • means: and still does.
        • She suffered all her life.
          • means: RIP
    • indefinite vs. definite
      • examples:
        • Did you know that John has painted a portrait of Mary?
        • Did you know that John painted this portrait of Mary?
    • transition present perfect → past:
      • after inclusion of a time reference
    • transition past → present perfect:
      • NEVER
  • present perfect progressive vs. present perfect
    • example:
      • ppp
        • scenario: not readily-painted ceiling
          • Ann’s clothes are covered with paint. She has been painting the ceiling all day.
      • pp
        • scenario: readily-painted ceiling
          • The ceiling was white. Now it’s blue. Ann has painted the ceiling.
    • example:
      • ppp
        • scenario: person running before finish line
          • He’s been running the marathon for charity.
      • pp
        • scenario: person after the race has been finished
          • He’s run the marathon for charity. It’s finally over!

future

  • forms
    • prediction (not sure, may not happen)
      • example:
        • George will leave tomorrow.
    • strong intention
      • example:
        • George is going to leave tomorrow.
    • according to external source (e.g. time table)
      • example:
        • George leaves tomorrow.
    • personal arrangement
      • example:
        • George is leaving tomorrow.
    • very formal
      • examples:
        • George is to leave tomorrow.
        • Please accompany my daughter, who is to marry.
        • command: You are to wait here until I come back.
    • contingent future
      • examples
        • If I am to succeed, I will have to work very hard.
        • When I get there, I will …
        • As soon as … , I will …
        • If I win, I will …
        • After I leave school, I will …
        • While I’m in NYC, I will …
        • Before I get too old, I will …
    • inminent future
      • to be about to
      • to be on the point of
      • to be on the verge of (only to express negative ideas)
  • will vs. ing-form
    • example:
      • I’m buying the meat.
        • means: I’m going to do it for sure.
      • OK, I’ll buy the beer.
        • means: I’m already buying the meat so it makes no difference.
    • example:
      • I reckon it will cost 7,000.
      • The calculation arrived. It’s going to cost 9,000.
  • will/shall + progressive
    • example:
      • Please give this to him.
        • answers
          • OK. I’ll see him tomorrow.
            • means: deciding now to help.
          • OK. I’ll be seeing him tomorrow.
            • means: I’m seeing him anyway, so I’ve got no problem in helping.
    • example:
      • When will you do it again?
        • means: Do it!
      • When will you be doing it again?
        • means: I know you are going to do it sooner or later. Just let me know when.
  • statements are always non-progressive
    • example:
      • The satellite will reach the moon on …