they've been cooking all day
they be cook all day
pro:sub aux part qn n
they've been cooking all day .
ð eɪ v WORD_BOUNDARY b ɪ n WORD_BOUNDARY k ʊ k ɪ ŋ WORD_BOUNDARY ɔː l WORD_BOUNDARY d eɪ WORD_BOUNDARY
t h e y ' v e WORD_BOUNDARY b e e n WORD_BOUNDARY c o o k i n g WORD_BOUNDARY a l l WORD_BOUNDARY d a y WORD_BOUNDARY