This document provides information about the present continuous and past continuous tenses in English. It defines the present continuous tense as expressing an act that is happening at the time discussed. It gives the formula and examples for positive, negative, and interrogative sentences in the present continuous. It then discusses the past continuous tense, providing its formula using was/were and the -ing form of verbs. It gives examples of using the past continuous tense to indicate actions occurring during a particular past moment or to show the interruption of one ongoing action by another brief action.