it's certainly been interesting
it's certainly been interesting.
ɪ t s WORD_BOUNDARY s ɜː t ə n l i WORD_BOUNDARY b ɪ n WORD_BOUNDARY ɪ n t ɹ ɛ s t ɪ ŋ WORD_BOUNDARY
i t ' s WORD_BOUNDARY c e r t a i n l y WORD_BOUNDARY b e e n WORD_BOUNDARY i n t e r e s t i n g . WORD_BOUNDARY