May I invoke a discussion of Greek tenses?

In thinking of some of the aspects of the tenses, I have a word
or two which I think best describes the aspect of each tense.  
I know this is simplistic, but for me it's a point of departure.  
I would greatly appreciate any comments.

Present:  continuous
Aorist:  fact
Perfect:  result
Imperfect:  background continuous
Future:  strongest potentiality

Fire away.

Also, I would appreciate somebody explaining to me how 
the root meaning of a verb affects the verbs aspect.

Ken Hall

Voice:  894-5559
Pager:  655-0362
e-mail: ken.hall@business.gatech.edu