don't work or doesn't work
do work or do work
mod v coord mod v
don't work or doesn't work ?
d oʊ n t WORD_BOUNDARY w ɜː k WORD_BOUNDARY ɔː ɹ WORD_BOUNDARY d ʌ z ə n t WORD_BOUNDARY w ɜː k WORD_BOUNDARY
d o n ' t WORD_BOUNDARY w o r k WORD_BOUNDARY o r WORD_BOUNDARY d o e s n ' t WORD_BOUNDARY w o r k WORD_BOUNDARY