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Principal Parts--Roles

All verb have four principal parts: infinitive, present participle, past, past participle. Below is a chart describing the roles these parts can fill. See also: A chart of Irregular Principal Parts.

infinitive present participle past past participle
  • main verb (present tense stem)
  • helping verb (present tense stem)
  • noun
  • adverb
  • adjective
  • main verb (progressive tenses)
  • adjective
  • noun (gerund)
  • main verb
  • helping verb
  • main verb (perfect & passive tenses)
  • adjective
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© 1999 J. Adrian Verkouteren