The Development of the Verb System in the Ontological Opposition of Space and time in the Indo-European Language Family.

The research investigates the system of the Indo-European verb through the lens of Gustave Guillaume's psycho-systematics theory. By employing "mental vision" and phenomenology, the linguistic concept was explored at multiple levels: the surface structure of language in speech and the deeper level within the Indo-European language system. The analysis of the tense system of the Indo-European verb starts with the ontologisation of a person in both the world and language.