The document discusses the simple past tense in English. It provides examples of using the simple past tense to express completed actions, talk about past habits or routines, and narrate past events. It also describes how regular verbs are made in the past by adding "-ed" and irregular verbs have unique past forms that must be memorized. It gives examples of common time expressions used with the past tense like "yesterday" and "last year." It explains how to form negative and interrogative sentences in the past tense using "did" or "did not." The remainder of the document provides practice filling in blanks with simple past verbs.