bo'X is the only series of a-e-i-o-u left, and zi'X is the only series of i-a-u left, so they shouldn't be touched without very good reason.
- po'a is included in the 1994 version of cmavo list, but not in the 1998 one. Is it assigned or not? --Cyril Slobin ir
- What was it assigned to? And is there any other current cmavo that has po'a's function? (--And Rosta)
- In elder version of the cmavo list, pe'a..po'a was an open/close pair for figurative speech. In newer version, pe'a become UI, and po'a gone. --Cyril Slobin ir