The document provides explanations and examples of how to use different tenses and structures in English, including:
- The simple past tense is used for finished past actions, habitual past actions, and actions that happened consecutively.
- The past continuous tense describes an action that was in progress at a specific time in the past or actions happening simultaneously.
- The present perfect tense is used for recently completed actions, actions with present relevance, personal experiences, and repeated actions.
- The present perfect continuous tense describes actions that started in the past and continue to the present or actions with visible present results.