Present – yes, presentation – yes, presentate – NO!
You can't 'presentate something'. Why? Because 'presentate' isn't a real word! It's a common mistake that people make when trying to work out the verb form of the noun “presentation”.
What is the verb form of presentation?
intransitive verb. 1 : to make a presentation. 2 : to become manifest.
What is the plural of present?
1 present /ˈprɛzn̩t/ noun. plural presents.