do they do porpoises
do do porpoise
mod v n
do they do porpoises .
d uː WORD_BOUNDARY ð eɪ WORD_BOUNDARY d uː WORD_BOUNDARY p oː ɹ p ə s ɪ z WORD_BOUNDARY
d o WORD_BOUNDARY t h e y WORD_BOUNDARY d o WORD_BOUNDARY p o r p o i s e s WORD_BOUNDARY