Principal Parts of Regular Verbs
A verb's tenses are made from four basic forms. These forms are called the verb's principal parts.
|Present||Present Participle||Past||Past Participle|
|stop||(am, is, are) stopping||stopped||(has, have, had) stopped|
|ask||(am, is, are) asking||asked||(has, have, had) asked|
The present and the past forms can be used by themselves as verbs.
The present participle and the past participle are always used with a helping verb.
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