How does fulfull the Greek concept of Unities?

Fulfil does not fulfil the Greek concept of Unities. The concept of Unities, which originated from Aristotle's Poetics, requires a dramatic work to have unity of time, place, and action. Unity of time refers to the events of a play taking place within a brief span of time, unity of place refers to a single location, and unity of action refers to a unified plot without subplots. Fulfil is a verb meaning "to satisfy or meet a requirement or expectation", and does not have a direct relation to the Greek concept of Unities.