This document provides conversation exercises and grammar lessons about using the present perfect tense in English. It includes two sample conversations where characters ask each other questions using the present perfect to inquire about past experiences. The grammar sections explain how to form the present perfect using "have/has + past participle" and how it differs from the simple past tense. Examples are provided of questions using already, yet, ever, and time expressions like "for" and "since". Activities are suggested for students to practice forming and responding to questions using the present perfect.