it's not necessary
it not necessary
pro:per neg adj
it's not necessary .
ɪ t s WORD_BOUNDARY n ɑː t WORD_BOUNDARY n ɛ s ɪ s ɚ ɹ i WORD_BOUNDARY
i t ' s WORD_BOUNDARY n o t WORD_BOUNDARY n e c e s s a r y WORD_BOUNDARY