j'en avais acheté
en avoir acheter
pro:y v:aux part
j'en avais acheté .
ʒ ɑ̃ n WORD_BOUNDARY a v ɛ z WORD_BOUNDARY a ʃ t e WORD_BOUNDARY
j ' e n WORD_BOUNDARY a v a i s WORD_BOUNDARY a c h e t é WORD_BOUNDARY