The stratified forms of classification that are used to describe the linguistic fixation process are not enough to contain every fixed form; they are particularly insufficient for fixed utterances. This article presents the hypothesis that all fixed forms can fit inside molds. The descriptions of these molds will allow us to clarify what the typical categorizations of fixed forms are.
CLIL theme: 3147 -- SCIENCES HUMAINES ET SOCIALES, LETTRES -- Lettres et Sciences du langage -- Linguistique, Sciences du langage