The document discusses the present continuous tense in English, which is used to describe actions that are happening now or over a short period of time in the future. It provides examples of sentences in the present continuous, such as "You are learning English now" and "They are not watching television." The document also explains that the present continuous is formed by combining the present tense of the verb "to be" with the present participle (verb + -ing) of the main verb. It gives the affirmative, negative, and interrogative forms of the present continuous across subjects.