1) Select the situations where we CANNOT use present perfect continuous: a) an activity that started in the past and continues in the present b) actions that stopped recently c) with for and since d) finished actions in the past 2) Select the correct structure for the present perfect continuous: a) S + have/has + past simple + c b) S + have/has + been + ING + c c) S + had + past participle + c 3) select the incorrect example with present perfect continuous a) She has been working on the project since last month. b) I have been studying for my exams all week. c) I have been going to Cartagena a week ago d) Have you been waiting for me for a long time? 4) What's the use of "for" and "since" a) for: a period of time / since: a specific moment b) for: a specific moment / since: a period of time  c) for: a specific moment in the present / since: a specific moment

Present perfect continuous

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