The concept of current relevance has been referred to in many discussions of the usage of the present perfect; however it is a difficult idea to teach because it deals with factors outside the present ...

We use the present perfect continuous to talk about an activity that started in the past and is continuing now or has recently finished. Some verbs are almost never used in the present perfect ...

It is not easy to communicate with someone without using the present perfect. We often need to talk about things which happened or started to happen in the past and which are linked to the present or ...