Words with short "a"
* bat
* call
* doll
* fall
* grass
* hall
* matt
* pass
* small
* tall
* wall
Words with short "e"
* bell
* dress
* fell
* hell
* tell
* well
* yell
Words with short "i"
* bill
* chill
* fill
* gill
* hill
* kill
* mill
* sill
* still
* will
Words with short "o"
* boss
* doll
* fog
* loss
* moss
* off
* toss
Words with short "u"
* buff
* cull
* dull
* full
* gull
* hull
* null
* pull
* skull
* tussle
This is not an exhaustive list, but it gives you an idea of the pattern. Remember that some words with double consonants have long vowels, like "feet", "feel", "moon", etc.