HOW LONG / WHEN, FOR / SINCE:  FOR and SINCE: Differences:  we want to say how long something has been happening. FOR + periode of a time:  Periode of time:…

How long have you (been) ... ? How long + Present Perfect. Present Perfect : uses: We use the present perfect to tell something that has started in the past, and…

Present Perfect Simple or Present Perfect Continuous-2 Compare: I've cleaned my flat (it's finished). I've been cleaning my flat (the cleaning isn't finished). I've written a letter. (the letter is…

Present Perfect Simple or Present Perfect Continuous Present Perfect Simple => Action is finished, completely finished ! Present Perfect Continuous => Action is not finished now. PPS => I have…

Present Perfect Continuous – I have been doing An action started in the past and continued until recently or that continue into the future. Construction: HAVE + BEEN + verb-ING…