The document lists irregular verbs in English and their past and past participle forms. It shows that many irregular verbs have the same spelling for their past and past participle forms, such as "cost", "cut", "hit", and "hurt". Others like "lend", "send", and "spend" have different spellings for the past form but the same spelling for the past and past participle forms. The document provides examples of irregular verbs to demonstrate the variations in their forms.