The document discusses the simple past tense in English. It explains that the simple past tense is used for past actions and past truths. It provides examples of adverbs that are commonly used with the past tense, such as yesterday and last week. It then describes the structure of the simple past tense, including using was/were with the verb "to be" and adding "-ed" to regular verbs. Finally, it provides exercises for the reader to practice forming sentences in the simple past tense.