What words have a long vowel sound that changes to a short vowel sound?

There are verbs that have irregular past tenses that change the vowel sound:

read (reed) => read (red)
lead (leed) => led
breed => bred
bite => bit
dream => dreamt
mean => meant
feel => felt
kneel => knelt
keep => kept
sleep => slept
sweep => swept
weep => wept
go => gone (past participle)

*Other verbs change sound completely (e.g. fight-fought, find-found, fly-flew).