Present participle:
rejuvenating
Present:
rejuvenate (3.person: rejuvenates)
Past:
rejuvenated
Future:
will rejuvenate
Present conditional:
would rejuvenate
Present Perfect:
have rejuvenated (3.person: has rejuvenated)
Past Perfect:
had rejuvenated
Future Perfect:
will have rejuvenated
Past conditional:
would have rejuvenated