Re: Aorist and perfect of derivative verbs

--- In cybalist@yahoogroups.com, "Andrew Jarrette" <anjarrette@...>
wrote:

> My question is, how were the perfect and aorist formed in Indo-
> European verbs that were not part of the thematic or athematic
> declensions, i.e. duratives with -e:-, causatives with -eje/o-, and
> derivative verbs (denominatives and others) with -a:-?

The short answer is that they'd fall under either thematic or
athematic conjugations depending on the ending. For example the -
eje/o- verbs are thematic. For a more in depth analysis check the
files section under the PIE Morphology folder. There's an article by
Piotr Gasiorowski on verbal morphology. Elsewhere in the files
section he has an informative article on PIE stress.