When writing other numbers between 21 and 99, you must use a hyphen, like a minus sign (-).
w ɛ n WORD_BOUNDARY ɹ aɪ t ɪ ŋ WORD_BOUNDARY ʌ ð ə ɹ WORD_BOUNDARY n ʌ m b ə ɹ z WORD_BOUNDARY b ɪ t w iː n WORD_BOUNDARY t w ɛ n t i WORD_BOUNDARY w ʌ n WORD_BOUNDARY æ n d WORD_BOUNDARY n aɪ n t i WORD_BOUNDARY n aɪ n WORD_BOUNDARY j uː WORD_BOUNDARY m ʌ s t WORD_BOUNDARY j uː z WORD_BOUNDARY ʌ WORD_BOUNDARY h aɪ f ə n WORD_BOUNDARY l aɪ k WORD_BOUNDARY ʌ WORD_BOUNDARY m aɪ n ə s WORD_BOUNDARY s aɪ n WORD_BOUNDARY