t'as vu des vaches
avoir vu de vache
v:poss prep prep n
t'as vu des vaches ?
t a WORD_BOUNDARY v y WORD_BOUNDARY d e WORD_BOUNDARY v a ʃ WORD_BOUNDARY
t ' a s WORD_BOUNDARY v u WORD_BOUNDARY d e s WORD_BOUNDARY v a c h e s WORD_BOUNDARY