This document provides an overview of the present perfect tense in English. It explains that the present perfect is formed using has/have + the past participle of the verb. It provides examples of affirmative, negative, and interrogative sentences. It also discusses the use of the present perfect to refer to finished actions that influence the present or actions that occurred before now. Signal words that are commonly used with the present perfect are listed. Finally, it mentions that exercises on forming sentences in the present perfect are provided at the end.