you don't need them on
you do need them on
pro:per mod v pro:obj adv
you don't need them on .
j uː WORD_BOUNDARY d əʊ n t WORD_BOUNDARY n iː d WORD_BOUNDARY ð ɛ m WORD_BOUNDARY ɒ n WORD_BOUNDARY
y o u WORD_BOUNDARY d o n ' t WORD_BOUNDARY n e e d WORD_BOUNDARY t h e m WORD_BOUNDARY o n WORD_BOUNDARY