I'm twenty one years old
I twenty one year old
pro:sub det:num det:num n adj
i'm twenty one years old .
aɪ m WORD_BOUNDARY t w ɛ n t i WORD_BOUNDARY w ʌ n WORD_BOUNDARY j ɪ ɹ z WORD_BOUNDARY oʊ l d WORD_BOUNDARY
i ' m WORD_BOUNDARY t w e n t y WORD_BOUNDARY o n e WORD_BOUNDARY y e a r s WORD_BOUNDARY o l d WORD_BOUNDARY