Just by learning these fifty, your students will have prepared themselves for 87% of irregular verb use in English! There is another page showing the usual list of irregular verbs in English. This does not include the auxiliary verbs 'do' and 'have'. People who teach English as a foreign language say English has 12 tenses (simple present, present continuous, etc.) In addition to the 12 tenses, there are extra forms ( used to, would always, and future in the past) which are used to express time in English. REGULAR VERBS IRREGULAR VERBS Base Form / Past Simple / Past Participle. These are the most common fifty irregular verbs in the English language.