> >Roots in PIE that alternate a/nothing ..between
> >Roots in PIE that alternate a/o ..
> There's two kinds of alternation here. There's a big difference
> (a) Alternation One:others.
> Roots which show /a/ in some languages, and zero (or /o/) in
> (b) Alternation Two:vowel /e~o~zero/, then
> Roots which show /a/ and zero (or /o/) in the same language.
> If we are comparing /a/ alternations with the ablaut
> it is the second kind we need, not the first. So where are yourexamples?
>Your alternation two (a/o/zero) is made up by you, not me. You