The document discusses the simple past and past continuous tenses in Spanish. It provides examples of how to form the simple past by adding "-ed" to base verbs or using irregular forms. It also explains how to use the auxiliary verbs "did" and "didn't" to form questions and negative statements. Additionally, it covers forming the past continuous by using the past form of "to be" plus the verb's "-ing" form, and provides examples of affirmative, negative, and interrogative sentences.