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