This article intends to elucidate the specific importance of Damourette and Pichon´s grammar Des mots à la pensée: Essai de grammaire de la langue française (1943) in order to think the logic basis of the utterance act notion. Accordingly, it fosters a dialogue between the grammarians' works and Jacques Lacan´s psychoanalysis notions. It is thus pursued a link between linguistic and psychoanalytic fields by investigating the existing dichotomy between the subject of an utterance act and the subject of unconcious. The strictly theoretical approach brings the three authors' notions together and attempts to catch their intersection points by compiling the French negation studies in Damourette and Pichon's grammar and relating them to the dichotomy utterance/utterance act posited by Lacan´s (2005) Seminar 6: desire and its interpretation. It concludes by stressing that both subjectivity and utterance act phenomena and grammar are interlaced.
Subject; Utterance act; Language; Unconscious; Negation