The document discusses the past continuous tense in English. It provides examples of how to form the past continuous using common verbs like "listen", "die", and "travel". It then gives examples of when to use the past continuous tense, such as when describing two simultaneous past actions, an action that was ongoing before another past action, at the beginning of a story, or to emphasize the duration of a past action. It concludes by asking the reader to provide their own examples of using the past continuous tense.