The document provides information about and examples of using the present perfect tense in English. It discusses what the present perfect is used for, including describing recent or ongoing past activities. It explains that the present perfect can describe either present or past events. The document then shows how to form the present perfect in positive and negative sentences and questions. It provides several example sentences for the user to choose the correct present perfect form, with explanations of the answers. The purpose is to help users understand and practice using the present perfect tense.