yes they are allowed
yes they be allow
co pro:sub aux part
yes they are allowed .
j ɛ s WORD_BOUNDARY ð eɪ WORD_BOUNDARY ɑː ɹ WORD_BOUNDARY ɐ l aʊ d WORD_BOUNDARY
y e s WORD_BOUNDARY t h e y WORD_BOUNDARY a r e WORD_BOUNDARY a l l o w e d WORD_BOUNDARY