ah mais c'était hier
ah mais être hier
co adv v:exist n
ah mais c'était hier .
a WORD_BOUNDARY m ɛ WORD_BOUNDARY s e t ɛ WORD_BOUNDARY  j ɛ ʁ WORD_BOUNDARY
a h WORD_BOUNDARY m a i s WORD_BOUNDARY c ' é t a i t WORD_BOUNDARY h i e r WORD_BOUNDARY