This document discusses the simple past tense in English. It explains that there are regular verbs that form the past tense by adding "-ed" and irregular verbs that have varying forms, such as "become" becoming "became". It provides examples of regular verbs like "walked" and irregular verbs like "gave". The document also covers how to use the simple past tense in affirmative, negative, and interrogative sentences, noting that the verb "be" is treated differently than other verbs. It concludes by stating the simple past tense is used for completed past actions and common time expressions used with it include words like "yesterday" and "ago".