The document discusses the simple past tense in English. It explains that regular verbs are made past tense by adding "-ed" or "-d", while irregular verbs have unique past forms that must be memorized. It provides examples of forming affirmative, negative, and interrogative sentences. Both regular and irregular verbs are covered. Examples are given for first, second, third person singular and plural forms in affirmative and negative sentences as well as questions and short answers.