Abstract

Preposed negation yes/no (yn)-questions like Doesn''t Johndrink? necessarily carry the implicature that the speaker thinks Johndrinks, whereas non-preposed negation yn-questions like DoesJohn not drink? do not necessarily trigger this implicature. Furthermore,preposed negation yn-questions have a reading ``double-checking'''' pand a reading ``double-checking'''' p, as in Isn''t Jane comingtoo? and in Isn''t Jane coming either? respectively. We present otheryn-questions that raise parallel implicatures and argue that, in allthe cases, the presence of an epistemic conversational operator VERUMderives the existence and content of the implicature as well as thep/ p-ambiguity.