Beyond the Synthetic Future: Usage-Based Linguistc

Objective: The objective of this study is to investigate the periphrases with the verb ir, in the third singular person, searching to describe the motivations for semantic change. Theoretical Framework: In this topic, the main concepts and theories that underpin the research are presented. Stand out the Usage-Centered Functional Linguistics - LFCU (Oliveira; Rosário, 2015; Furtado da Cunha, Bispo, Silva, 2016) which is based on Construction Grammar, Cognitive Linguistics (Goldberg, 1995; Traugott; Trousdale, 2021; Bybee, 2016), providing a solid basis for understanding the context ofthe investigation. Method: The methodology adopted for this research it is explanatory-descriptive and can be considered empirically based, focusing on the synchronic character, since the samples are extracted in a single temporal dimension Results and Discussion: The results obtained revealed that metaphorical and metonymic mechanisms are involved in the use of these constructions. In the discussion section, these results are contextualized in light of the theoretical framework, highlighting the implications and relationships identified. Possible discrepancies and limitations of the study are also considered in this section. Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the portuguese language teaching. These implications could encompass to other areas of study, such as cognition. Originality/Value: This study contributes to the literature when highlighting that there is a pattern in linguistic change. The relevance and value of this research are evidenced by describing the change at different levels and the impact on Portuguese language teaching.