Hi guys. I read that there's no distinction between [ɛ̃] and [œ̃] (today [æ̃]), [ə] and [ø] and between [ɛ] and [ɛ:]. Some references say that these mergers are completed in Parisian French and among younger native speaker, without delimiting this phenomenon. I read on this forum that people from Normandy can't distinguish [ɛ̃] from [œ̃]. I would ask you: 1) how much are these mergers widespread (geographically)? 2) are new French grammar books taking this phenomenon into account, reducing the French nasal vowels from 4 to 3 and not nasal French vowels from 11 to 10 (because [ɑ] and [ɛ:] are not, generally, taken into consideration in new grammar books)?