This document provides information about forming and using the past simple tense in English. It explains that there are regular and irregular past tense verbs. Regular past tense verbs are formed by adding "-ed" to the base verb, with some modifications for verbs ending in consonant-vowel-consonant or verbs ending in "e". Irregular past tense verbs have unique past forms that must be memorized. It also gives examples of regular and irregular verbs and provides pronunciation rules for regular past tense verbs ending in "-ed".