Matching Pairs Present Perfect Simple Vs ContOnline version Present Perfect Tenses by Rogelio Gómez 1 I have never been to Europe 2 I have practiced Karate since I was in elementary 3 I haven't finished my homework yet 4 I have just lost my keys 5 I have worked as a teacher for 10 years 6 I have already finished reading the book you lent me 7 It has been raining all this week 8 I have been working for this company for 5 yerars An activity that started in the past and we know when it started we know how long an activity has lasted and we have some certainty it continues in the present An incomplete activity An activity which happened not long ago but we don't know exactly when, how or where it happened An activity we know is finished although we don't know exactly when A recurrent activity within a certain period of time An experience An activity that started in the past and we know how long it has lasted