This document provides an overview of the present perfect tense in English. It describes the form of the present perfect positive and negative and questions. It explains the uses of the present perfect to describe actions that began in the past and continue to the present, actions that have resulted in a current situation, and unspecified actions at any time until now. It also discusses using the present perfect with time expressions like today, this week, or someone's life. The difference between the present perfect simple and present perfect continuous is outlined.