Torsten:
> Your alternation two (a/o/zero) is made up by you, not me. You
> provide the examples.
Well, if someone call tell me what the perfect of *mad- or *kap-
is, that'd be great. We had a discussion a while back on this
but nobody could provide more info. So I assumed that it was
an open possibility that *a could alternate with *o. I can't
imagine why a language would just alternate *e and not *a too.
Since based on all other world languages a language MUST have a
low vowel to balance out high ones, we know that IE DID have *a.
So, why wouldn't *a alternate with *o in ablaut? In English we
have verbs that ablaut too like bear/bore and wear/wore but also
sit/sat and see/saw. We see many vowels participating in ablaut,
not just one.
= gLeN