This document provides examples of sentences using the present perfect tense in both affirmative and negative forms. It includes: 1) Example sentences with verbs in the present perfect tense both positively and negatively, such as "He has lost his passport" and "We have not finished our work." 2) Example question sentences in the present perfect tense to write questions and answers for, such as "Have you taken any photographs?" 3) An instruction to write questions and answer them, making the answers true for yourself.