The document discusses the present continuous tense in English. It describes how the present continuous tense is used to refer to actions or events that are happening or in progress at the time of speaking. It provides examples such as "you are using the internet" and "nowadays more people are becoming vegetarian." The document also explains how the present continuous tense can be used to describe planned future events like "we are going on holiday tomorrow." It provides rules for forming affirmative, negative, and interrogative sentences in the present continuous tense using helping verbs like "is," "am," and "are" along with verbs in the -ing form.