* ABSTRACT: This subject studies some nominal constructions from language operations point of view.

* ABSTRACT: This subject studies some nominal constructions from language operations point of view. Accordingly, instead of studying the values or meanings of these constructions, it is demonstrated the attribution proces nature of these meanings or values. In the subject last section, it is existinged a pedagogical orientetion to the teaching of these constructions.

* KEYWORDS: Nominal constructions; representation; dialogue; determinacy and indeterminacy operations; aspect; modality; grammar teaching.

* RESUMO: Este texto estuda algumas construcoe nominais do ponto de vista das operacoes da linguagem. Desse modo, no lugar de se estudar o valores ou significados dessas construcoe procura-se muito mais mostrar a