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Key Terms


irregular verb  a verb that has an irregular form in the past tense and past participle. Ex.: choose, chose, chosen
nonstandard forms  forms of verbs used in the dialect of a particular community; these are generally not acceptable in written English or in formal contexts. Ex.: YesterdayI fix the car.
past participle  one of the principal parts of every verb: formed by adding —d or —ed to the present; used with the helping verbs have, has, or had, or with a form of be (with passive verbs).
present participle  one of the principal parts of every verb: formed by adding —ing to the present
principal parts of verbs  the four parts of every verb: present, past, past participle, and present participle
PresentPastPast ParticiplePresent Participle
Regular Verb shout shouted shouted shouting
Irregular Verb choose chose chosen choosing

verb tense  the times shown by verbs (present, past, future, etc.)





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