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. This perspective highlights the taxonomic relevance of philosophical factors that shape the development of the "image of time" from a prehistoric viewpoint within the Indo-European language family. The purpose of this research is to delve into the Indo-European verb system using Gustave Guillaume's psycho-systematics theory as the theoretical framework. To achieve this, the authors draw on examples from French, English, Ukrainian, and Russian languages. The study aims to examine the process of the Indo-European verb's development within the ontological opposition of space and time and the ontological status of the grammatical tense and mood categories in the Indo-European verb system. It was discovered that grammatical forms of verbs in the Indo-European language family provide insights into their formal essence. These forms represent the "positions" they occupy within the ontological dialectical relationship of space, time, language, and thinking. The research sheds light on the Indo-European verb system by applying Guillaume's psycho-systematics theory. By clarifying the relationship between space, time, language, and thinking, a deeper understanding of linguistic structures and how they reflect human cognition and conceptualization of action can be gained.