it certainly is vanilla
it certain be vanilla
pro:per adv aux n
it certainly is vanilla.
ɪ t WORD_BOUNDARY s ɜː t ə n l i WORD_BOUNDARY ɪ z WORD_BOUNDARY v ʌ n ɪ l ə WORD_BOUNDARY
i t WORD_BOUNDARY c e r t a i n l y WORD_BOUNDARY i s WORD_BOUNDARY v a n i l l a . WORD_BOUNDARY