no me ha costado
no me habe costa
adv pro:obj aux part
no me ha costado .
n o̞ WORD_BOUNDARY m e̞ WORD_BOUNDARY a WORD_BOUNDARY k o̞ s t a d o̞ WORD_BOUNDARY
n o WORD_BOUNDARY m e WORD_BOUNDARY h a WORD_BOUNDARY c o s t a d o WORD_BOUNDARY . WORD_BOUNDARY