These grammars in general state that speakers tend to distinguish the content of their communication from their attitude, and that this attitude manifested morphemically is what is known as mode.
In language Y, there is a conditioned allophonic alternation: H [right arrow] I/-- + A (where A is an event associated with a different morpheme, and thus it is parenthesized in [28]: it does not belong to the set of exemplars that are morphemically grouped with FGH).
In an earlier stage or the language, such as that represented by the Shangshu, the word huo by itself, with the morphemically significant *-k, contained a referential function expressible as "in some cases." [35] This does not represent a grammaticalization, but rather a kind of derivational process whereby a deictic viewpoint is presented.