The document discusses the present continuous tense in English. It explains that the present continuous is formed using the verb "be" plus the present participle or "-ing" form of the main verb. It is used to describe actions that are happening now or around now, rather than habitual actions. Examples of the affirmative, negative and interrogative forms are provided for the present continuous of the verb "to sleep". The document encourages the reader to practice forming sentences in the present continuous tense.