PERFECT TENSES IN THE INDICATIVE MOOD

Present Perfect (perfecto):  He comido. - I have eaten.
Past Perfect (pluscuamperfecto): Había comido antes de las seis. - I had eaten before six.
Future Perfect (futuro perfecto): Habré comido para las seis. - I will have eaten by six.
Conditional Perfect (condicional perfecto): Habría comido si hubiera tenido el tiempo. - I would have eaten if I had the time.