The document discusses the simple present tense in English. It is used to express repeated or habitual actions, facts that are generally true, and schedules or routines. The simple present is formed by using the base form of the verb for most subjects, but adding -s for third person singular subjects and -ies or -es for some irregular verbs. Questions are formed by swapping the verb and subject with do/does. Negatives use don't or doesn't.