m3 唔 知 aa1
m3 m4 zi1 aa1
co adv:neg v sfp
m3 唔 知 aa1 .
m̩˧ WORD_BOUNDARY m̩˧˩̰ WORD_BOUNDARY ts i˥ WORD_BOUNDARY a̞˥ WORD_BOUNDARY
m 3 WORD_BOUNDARY 唔 WORD_BOUNDARY 知 WORD_BOUNDARY a a 1 WORD_BOUNDARY . WORD_BOUNDARY