hier roulé en vélo
hier rouler en vélo
n part prep n
hier roulé en vélo ?
 j ɛ ʁ WORD_BOUNDARY ʁ u l e WORD_BOUNDARY ɑ̃ WORD_BOUNDARY v e l o WORD_BOUNDARY
h i e r WORD_BOUNDARY r o u l é WORD_BOUNDARY e n WORD_BOUNDARY v é l o WORD_BOUNDARY