Jim, I'm not quite sure I understand what you're aiming at. I haven't tried this myself, but if the KWIC is giving you "a list of all of the individual forms of the verb in the Aramaic portions of the Bible," it seems to me that you're already where you want to go. The conjunction wě and prepositions prefixed to infinitives absolute would not, in my understanding, really be part of "the full forms of verbs as they appear in the text," since the prefixes do not belong to the verb forms as such. Once you've got the verb forms themselves well in hand and have an understanding of their parsings, I wouldn't think you'd have any difficulty recognizing the meaning of a form with a prefixed wě or preposition. Or am I missing what you're after?