The document provides examples of forming sentences in the past simple tense, including positive and negative sentences and questions. It gives common verbs like "catch", "buy", "put", "let", and "fly" and forms sentences using those verbs in the past tense, such as "Yesterday I caught fish in the river" and "Last Sunday Betty bought some butter in the dairy." It also provides questions using the past tense, like "Did you catch fish in the river?" and "Did Betty buy any butter in the dairy?"