Négation, syntaxe, détermination. Un bilan et des questions

The present paper retraces some results of my own investigations, among other authors, on such questions as negation, levels of analysis of sentences, and internal structure of NPs, after years of research in the field. It suggests some possible paths of further investigations, among others: thus, negation needs a multi-levels of analysis, including an enunciative component; syntax requires an adequate description of informative value of items, and the internal composition of determiners in French remains an open question.