aren't they beautiful
be they beautiful
aux pro:sub adj
aren't they beautiful ?
ɑː ɹ n t WORD_BOUNDARY ð eɪ WORD_BOUNDARY b j uː ɾ i f ə l WORD_BOUNDARY
a r e n ' t WORD_BOUNDARY t h e y WORD_BOUNDARY b e a u t i f u l WORD_BOUNDARY