When you practicing this series you woill find that as far as "short e" sounds go, you will see many repeats. This is because many of the "short e" are a higher vocabulary level than normally seen by pre-readers. It will be hard to shake the word "bed" when you are working on these for sure.
The most common long e words are: here, eat, sea easy, each and team. The most common short e words are: bed, jet, leg, let men, ten and wet.