hier c'était quel jour
hier être quel jour
adv v:exist det:gen n
hier c'était quel jour ?
 j ɛ ʁ WORD_BOUNDARY s e t ɛ WORD_BOUNDARY k ɛ l WORD_BOUNDARY ʒ u ʁ WORD_BOUNDARY
h i e r WORD_BOUNDARY c ' é t a i t WORD_BOUNDARY q u e l WORD_BOUNDARY j o u r WORD_BOUNDARY