This document discusses the different forms of the present tense in English: simple present, present continuous, present perfect, and present perfect continuous. It provides examples for each form and explains how to form sentences using these tenses. Key points include: - Simple present uses the root verb form and is used for habitual or timeless actions. - Present continuous uses "be + verb+ing" and describes ongoing actions. - Present perfect uses "have/has + past participle" and refers to completed actions with relevance to the present. - Present perfect continuous uses "have/has been + verb+ing" and describes ongoing actions that began in the past.