The document discusses the simple past and past progressive tenses in English. The simple past is used to describe actions that happened once, never, or repeatedly in the past. It can also connect actions that happened one after another or while something else was happening. The past progressive emphasizes ongoing or continuous actions in the past. It is formed using was/were plus the verb plus -ing. Examples are given showing how it can describe two simultaneous past actions or an action that was ongoing at a specific past time.