La pertinenza del livello illocutivo in una categorizzazione controversa: gli indicatori di interrogazione tra affissi e clitici e la ridesignazione dei modi in alcune varietà nord orientali.

The grammatical research into the illocutionary force devices, inasmuch as they involve a comparison of several levels of grammatical description - morphological, syntactic and lexical - having a unifying explanation in function, calls for an assessment of their organization and interaction within a given theory. In verifying the appropriateness of the attribution of an interrogative mood in Northern Italian dialects the heterogeneity of the grammatical criteria, explicit or implicit, which are used to deal with the relationship between mood and illocutionary force devices, makes unsatisfactory any pre theoretical and intuitive utilization of these notions. Interpreting the grammatical illocutionary force devices as clusters of grammatical features, a representation on at least two levels of grammatical description, which considers the features necessary to define type, with some possible variations from the latter, offers a unified explanation of the character and of the organization of such phenomena.