tro gyntaf hyn 'di digwydd
tro gyntaf hyn 'di digwydd ?
t r oː WORD_BOUNDARY ɡ ʌ n t a v WORD_BOUNDARY h ø n WORD_BOUNDARY d iː WORD_BOUNDARY d iː ɡ uɨ ð WORD_BOUNDARY
t r o WORD_BOUNDARY g y n t a f WORD_BOUNDARY h y n WORD_BOUNDARY ' d i WORD_BOUNDARY d i g w y d d WORD_BOUNDARY