A length distinction is made in writing by doubling the vowel, but this is based on comparison with other Chinantec languages; the distinction is apparently being lost from Ozumacín Chinantec.
This is not written after a nasal consonant, where there is no contrast with oral vowels.
Apart from loans, /d/ occurs only in the enclitic daˊ, which softens an imperative.
They are written as follows:[2] Ballistic syllables are marked by a steep drop in pitch.
[3] A sample with all tone marks:[2] Ko̱o̱ˉ häˊ gaꜙnääꜗ u̱u̱ꜗ chiihˉ gaꜙki̱i̱ꜙ kwɨɨˉ.