This document lists common irregular verbs in English and their past tense forms. It provides the base form of each verb on the left and its past tense form on the right, with examples including run/ran, sit/sat, stand/stood, understand/understood, speak/spoke, sleep/slept, think/thought, write/wrote, read/read, swim/swam, give/gave, get/got, sing/sang, drive/drove, bring/brought, buy/bought, come/came, go/went, eat/ate, drink/drank.