Using the same tools as M.-A. Morel's to describe French, F. Passot, J. Szlamowicz and E. Vialleton propose to investigate the existence of a specific question intonation in English. Their data come from a corpus of naturally occurring one-to-one conversations between native English-speakers. Their results show that such an intonational regularity does exist only in a limited number of configurations. More generally, it appears that one has to take into consideration the interplay of syntactic elaboration, prosodic focalization and pragmatic implications in order to determine the intersubjective status of interrogatives.