1. The document discusses the use of past forms of regular verbs. It provides examples of how regular verbs are formed in the past tense by adding "-ed" or "d" to the base verb. 2. It then presents a dialogue between a father and son about the lifestyle of early Filipinos. It describes how they lived in caves and gathered wild fruits and hunted animals for food. 3. The document emphasizes that the past form of verbs is used when talking about actions or events that happened in the past. It provides exercises for students to practice identifying and using past tense regular verbs.