Note: The words can, may and must are Modals. The following English irregular verbs are often used in the standard past and participle forms (-ed). We do not foresee all the irregular verbs ever being standardized, but some of the more minor variations in less commonly used words will probably disappear in the next genration or two. The trend, in English, and especially in American English, is to standardize the irregular verbs. The irregular verbs in a table infinitive
