Present and past tenses
#1 I do
present simple (-> Units 2-4)
* Ann often plays tennis.
* I work in a bank but I don't enjoy it very much.
* Do you like parties?
* It doesn't rain much in summer.
#2 I am doing
present continuous (-> Units 1, 3-4)
* 'Where's Ann?' 'She's playing tennis.'
* Please don't disturb me now. I'm working.
*Hello. Are you enjoying the party?
* It isn't raining at the moment.
#3 I have done
perfect I present perfect simple (-> Units 7-8, 10-14)
Ann has played tennis many times.
* I've lost my key. Have you seen it anywhere?
* How long have they known each other?
* 'Is it still raining?' 'No, it has stopped.'
* The house is dirty. We haven't cleaned it for weeks.
#4 I have been doing
present perfect continuous (-> Units 9-11)
* Ann is very tired. She has been playing tennis.
* Your're out of breath. Have you been running?
* How long have they been learning English?
* It's still raining. It has been raining all day.
* I haven't been feeling well recently. Perhaps I should go to the doctor.
#5 I did
past simple (-> Units 5-6, 13-14)
* Ann played tennis yesterday afternoon.
* I lost my key a few days ago.
* There was a film on TV last night but we didn't watch it.
* What did you do when you finished work yesterday?
#6 I was doing
past continuous (-> Unit 6)
* I saw Ann in the park yesterday. She was playing tennis.
* I dropped my key when I was trying to open the door.
* The television was on but we weren't watching it.
* What were you doing at this time yesterday?
#7 I had done
past perfect (-> Unit 15)
* It wasn't her first game of tennis. She had played many times before.
* I couldn't get into the house because I had lost my key.
* The house was dirty because we hadn't cleaned it for weeks.
#8 I had been doing
past perfect continuous (-> Unit 16)
* Ann was tired yesterday evening because she had been playing tennis in the afternoon.
* George decided to go to the doctor because he hadn't been feeling well.
For the passive, see Units 41-43.