This document provides an overview of the present perfect tense in English. It is used to describe experiences or changes that began in the past but are still relevant to the present. Examples are given such as "I've travelled all around the world" and "She has bought a new house." The difference between the present perfect and simple past is explained. Forming the present perfect with auxiliary verbs like "have" and "has" is covered, as well as using adverbs like "ever" and "never." Some online activities and exercises for practicing the present perfect tense are listed at the end.