<p><strong>Auxiliary Verb:</strong></p><ul><li>3rd: could</li><li>present singular 1st person: can</li><li>past plural: could</li><li>2nd: could or (Archaic) couldst</li><li>2nd: can or (Archaic) canst</li><li>past singular 1st person: could</li><li>present plural: can</li><li>3rd: can</li></ul><p><strong>Definitions:</strong></p><ul><li>to be able to; have the ability, power, or skill to: She can solve the problem easily, I'm sure.</li><li>to know how to: He can play chess, although he's not particularly good at it.</li><li>to have the power or means to: A dictator can impose his will on the people.</li><li>to have the right or qualifications to: He can change whatever he wishes in the script.</li><li>may; have permission to: Can I speak to you for a moment?</li><li>to have the possibility: A coin can land on either side.</li></ul><p><strong>Verb (used with or without object):</strong></p><ul><li>2nd: could or (Archaic) couldst</li><li>3rd: can</li><li>3rd: could</li><li>2nd: can or (Archaic) canst</li><li>present plural: can</li><li>present participle: cunning</li><li>past participle: could</li><li>present singular 1st person: can</li><li>past plural: could</li><li>infinitive: can</li><li>past singular 1st person: could</li><li>imperative: can</li></ul><p><strong>Obsolete:</strong></p><ul><li>to know.</li></ul><p><strong>End of Response</strong></p>