Um belo dia resolvi mudar: uma análise dos usos da microconstrução um belo dia no português brasileiro

This article aims to describe and analyse the microconstruction "um belo dia" ("a beautiful day") from the theoretical perspective of Usage-Based Functional Linguistics. The analysis is guided by the hypothesis that in Brazilian Portuguese the uses of microconstruction "um belo dia" ("a beautiful day") constitute a process of change, since it expresses linguistically a more concrete concept, it is active in the basic sentence organization and also configures a more abstract use, at the textual level, at the macro-organization of the narrative. The dates integrates the "Corpus do Portugues", "Projeto Fala Goiana" and "Grupo Discurso e Gramatica". The analysis is in panchronic orientation.