mm what letters don't you know
mm what letter do you know
co pro:int n mod pro:per v
mm what letters don't you know ?
ɛ m ɛ m WORD_BOUNDARY w ʌ t WORD_BOUNDARY l ɛ ɾ ɚ z WORD_BOUNDARY d oʊ n t WORD_BOUNDARY j uː WORD_BOUNDARY n oʊ WORD_BOUNDARY
m m WORD_BOUNDARY w h a t WORD_BOUNDARY l e t t e r s WORD_BOUNDARY d o n ' t WORD_BOUNDARY y o u WORD_BOUNDARY k n o w WORD_BOUNDARY