The document provides a lesson on irregular verbs in English. It defines past tense verbs as those expressing actions that occurred in the past. The lesson notes that irregular verbs do not follow the regular pattern of adding "-ed" to form the past tense like regular verbs. Examples are provided of sentences using both present and past tense forms of irregular verbs like run, eat, get, go, know, ring, throw, win, teach, and write. Students are instructed to practice forming sentences using irregular verb forms with partners.