I should of known
I should of know
pro:sub mod prep part
i should of known .
aɪ WORD_BOUNDARY ʃ ʊ d WORD_BOUNDARY ʌ v WORD_BOUNDARY n oʊ n WORD_BOUNDARY
i WORD_BOUNDARY s h o u l d WORD_BOUNDARY o f WORD_BOUNDARY k n o w n WORD_BOUNDARY