The document provides information about using the past continuous and simple past tenses in English. It explains that the past continuous describes an ongoing action in the past, and is formed using was/were plus the present participle. The simple past describes a completed action, and is formed using the base form of the verb. Examples are provided to illustrate expressing activities, questions, and negatives for the past continuous. It also discusses combining the past continuous and simple past using connecting words like "while" and "when".