The document discusses various English verb tenses used to talk about past events, including:
- The past simple tense which is used for completed past actions and events.
- The past continuous tense which is used for unfinished past actions that were ongoing or in progress at a certain time.
- The present perfect tense which is used for actions or experiences that started in the past and continue in the present, or actions that occurred recently or at an unspecified time before now.
- The past perfect tense which is used to talk about actions that occurred before other past actions.