The document provides information on the present perfect tense in English. It begins with examples of the present perfect used with the verbs "clean", "go", and "been". It then explains how the present perfect is used to indicate an action that occurred in the past with relevance to the present. It distinguishes between regular and irregular past participles. Examples are given to illustrate using the present perfect to talk about experience over one's lifetime with the phrases "have ever" and "never". The document concludes with exercises practicing forming questions and sentences using the present perfect tense.