The document discusses how to structure and use the present progressive tense in English. It begins by explaining that the present progressive is formed using the present simple form of the verb "to be" plus the gerund (verb + -ing) of the main verb. It then provides conjugated forms of "to be" and examples of verbs in the gerund form. Next, it gives example sentences in the affirmative, negative, and interrogative forms. It concludes by outlining some common uses of the present progressive and listing exceptions where some verbs are not used in the progressive form.