The document provides information about forming and using the present perfect tense in English. It discusses how the present perfect tense is formed with have/has + past participle. It explains that the present perfect tense is used to talk about actions that started in the past and continue to the present. It also discusses using the present perfect tense with time expressions like "since" and "for" to indicate how long an action has been occurring. Examples and practice questions are provided to illustrate the proper uses of the present perfect tense.