The document discusses the present continuous tense, which is used to describe actions that are happening at the present moment. It provides examples of sentences in the present continuous, such as "Right now, she is singing a song" and "In this moment, they are watching TV." Verbs in the present continuous end in "-ing" to indicate an ongoing action. Care must be taken to include a form of the verb "to be" like "is" or "are" when constructing sentences in the present continuous.