16.1 Saying what you've done A Listening and presentation This listening is used to present the present perfect. As its use is very complex in English, the focus here is limited to talking about the past when interested in the result. rather than when something happened16.1 Saying what you’ve done A. Listening and presentation This listening is used to present the present perfect. As its use is very complex in English, the focus here is limited to talking about the past when interested in the result, rather than when something happened