This document discusses the simple past tense in English. It begins by explaining that the simple past tense is used to talk about actions that started and finished at a specific time in the past. It then discusses the formation of regular and irregular past tense verbs. Regular past tense verbs are formed by adding "-ed" to the base verb, while irregular verbs do not follow a set pattern and must be memorized. The document provides examples of common irregular verbs and their past tense forms. It concludes by providing exercises to practice forming sentences in the simple past tense with regular and irregular verbs.