The document discusses irregular verbs in English. It provides examples of 7 common patterns of irregular verbs: (1) no change (put), (2) 3 different sounds (drink), (3) eat, (4) write, (5) lose, (6) make, (7) bring. For each pattern, it gives the base form of the verb, the past form, and the past participle form in example sentences. It encourages practicing forming the correct verb forms in sentences and provides additional practice examples.