The document discusses the simple past tense in English. The simple past tense, also called the past simple, is used to narrate events that occurred at a specific time in the past. It corresponds to the preterite tense in Spanish. The simple past tense uses verbs in their past form and generally includes time expressions that refer to the past, such as "yesterday" or "last year." It indicates an action that was completed at a definite time in the past. Examples are provided to illustrate its use.