The document discusses the present simple tense in English. It describes how to form the affirmative, interrogative, and negative forms of the present simple tense. It also discusses using the present simple tense to talk about habits, routines, permanent states, and near future events. Examples are provided to illustrate how to conjugate regular and irregular verbs in the third person singular form in the present simple tense. Time expressions like frequency adverbs and phrases that can be used with the present simple tense are also outlined.