The document discusses the present continuous tense in English. It explains the affirmative, negative, and interrogative forms using the verb "to be" plus the present participle (verb + "ing"). Examples are provided for the verb "to go". The present continuous is used to describe actions that are ongoing or in progress at the present time, planned future actions, or temporary situations. It can also emphasize repeated actions when used with words like "always" or "constantly". Some verbs are not usually used in the continuous form.