Present perfect and past (2) (I have done and I did)

A. Do not use the present perfect (I have done) when you talk about a

    finished time (for example, yesterday/ten minutes ago/in 1985/when

    I was a child). Use a past tense:

 

    * The weather was nice yesterday. (not 'has been nice')

    * They arrived ten minutes ago. (not 'have arrived')

    * I ate a lot of sweets when I was a child. (not 'have eaten')

    * A: Did you see the news on television last night? (not 'Have you seen')

      B: No, I went to bed early. (not 'have gone')

      Use a past tense to ask When ...? or What time ...?:

   * When did they arrive? (not 'have they arrived')

   * What time did you finish work?

        Compare:

     Present perfect

   * Tom has lost his key. He can't get into the house.

      Here, we are not thinking of the past action. We are thinking of the 

      present result of the action: Tom doesn't have his key now.

      Past simple

   * Tom lost his key yesterday. He couldn't get into the house.

      Here, we are thinking of the action in the past. We don't know from

      this sentence whether Tom has his key now.

B. Compare present perfect and past:

      Present perfect (have done)

   * I've done a lot of work today.

     We use the present perfect for a period of time that continues from

     the past until now. For example, today, this week, since 1985.

   * It hasn't rained this week.

   * Have you seen Ann this morning? (it is still morning)

   * Have you seen Ann recently?

   * I don't know where Ann is. I haven't seen her. (= I haven't seen her 

     recently)

   * We've been waiting for an hour. (we are still waiting now)

 

   * Ian lives in London. He has lived there for seven years.

   * I have never played golf. (in my life)

    The present perfect always has a connection with now. See Units 7-12.

 

    Past simple (did)

   * I did a lot of work yesterday.

     We use the past simple for a finished time in the past. For example,

     yesterday, last week, from 1985 to 1991.

   * It didn't rain last week.

   * Did you see Ann this morning? (it is now afternoon or evening)

   * Did you see Ann on Sunday?

   * A: Was Ann at the party on Sunday?

     B: I don't think so. I didn't see her.

   * We waited (or were waiting) for an hour. (we are no longer waiting)

   * Ian lived in Scotland for ten years.

     Now he lives in London.

   * I didn't play golf when I was on holiday last summer.

     The past simple tells us only about the past. See Units 5-6.

EXERCISES

14.1 Are the underlined parts of these sentences right or wrong? Correct

        the ones that are wrong.

      1. _I've lost_ my key. I can't find it anywhere. RIGHT

      2. _Have you seen_ the news on television last night? WRONG: Did you

          see

      3. _I've bought_ a new car. Do you want to see it? ---

      4. _I've bought_ a new car last week. ---

      5. Where _have you been_ yesterday evening? ---

      6. Jenny _has left_ school in 1991. ---

      7. I'm looking for Mike. _Have you seen_ him? ---

      8. I'm very hungry. _I haven't eaten_ anything today. ---

      9. Diane _hasn't been_ at work yesterday. ---

    10. When _has this book been_ published? ---

14.2 Make sentences from the words in brackets. Use the present perfect

        or past simple.

      1. (it/not/rain/this week) It hasn't rained this week.

  

      2. (the weather/be/cold/recently) The weather ---

      3. (it cold/last week) It ---

      4. (I not/read/a newspaper yesterday) I ---

      5. (I not/read/a newspaper today)

      6. (Ann/earn/a lot of money/this year)

 

      7. (she not/earn/so much/last year)

      8. (you  have/a holiday recently?)

14.3 Put the verb into the correct form, present perfect or past simple.

      1. I don't know where Amy is. Have you seen (you/see) her?

      2. When I --- (get) home last night, I --- (be) very tired and I --- (go)

          straight to bed.

      3. Your car looks very clean --- (you/wash) it?

      4. George --- (not/be) very well last week.

      5. Mr Clark --- (work) in a bank for 15 years. Then he gave it up.

      6. Molly lives in Dublin. She --- (live) there all her life.

      7. --- (you/go) to the cinema last night?' 'Yes, but it --- (be) a mistake.

          The film (be) awful.

      8. My grandfather --- (die) 30 years ago. I --- (never/meet) him.

     9. I don't know Carol's husband. I --- (never/meet/him).

   10. A: Is your father at home?

        B: No, I'm afraid he --- (go) out.

        A: When exactly --- (he/go) out? B: About ten minutes ago.

   11. A: Where do you live?

        B: In Boston.

        A: How long --- (you/live) there?

        B: Five years.

        A: Where --- (you/live) before that?

        B: In Chicago.

        A: And how long --- (you/live) in Chicago?

        B: Two years.

14.4 Write sentences about yourself using the ideas in brackets.

       1. (something you haven't done today)

            I haven't eaten any fruit today.

      2. (something you haven't done today)

      3. (something you didn't do yesterday)

      4. (something you did yesterday evening)

      5. (something you haven't done recently)

       6. (something you've done a lot recently)