1. Present Perfect The present perfect is a verb form which links the past and present.

2. We use the present perfect when we want to talk about a period of time that started in the past and continues until now. If the activity is completed or finished or we mention the exact time something happened, we use the past simple.

3. The Present Perfect Tense - When to use We use the Present Perfect Tense to talk about experiences. It is important if we have done it in our lives or not. It is not important when we did it. Examples I have been abroad two times. Anna has never broken a leg. Have you ever eaten sushi?

4. The Present Perfect Tense - When to use We use the Present Perfect Tense to talk about an action which started in the past and continuous up to now. Examples I have been a teacher for more than ten years. We haven't seen Janine since Friday. How long have you been at this school?

5. The Present Perfect Tense - When to use We also use the Present Perfect Tense to talk about a past action that has the result in the present. Examples I have lost my wallet. = I don't have it now. Jimmy has gone to South America. = He isn't here now. Have you finished your homework? = Is your homework ready?

7. Examples: I've lived in Bogota since 1983 I started living in Bogota in 1983 and I still live in Bogota now.

8. STRUCTURES

9. TheFunctions of thePresentPerfect. http://web2.uvcs.uvic.ca/elc/studyzone/410/grammar/pperf.htm

10. Extra information The present perfect is essentially a present tense. Although it refers to the past, it's the effect on the present that we're highlighting when we use the present perfect. He hasn't experienced many cities in her life (his life up until now). She's lived in London for 6 years = She came to London 6 years ago (and she's still here now).