Vowel pronunciation
1) ea ee ie = и
deer beer tree dear dreary bleak reprieve relief belief
2) ai = ей
train pair nail trail
3) оо = у
food roof aloof zoo
The letter E at the end changes the pronunciation of the previous vowel
4) man + e = mane ей
5) her + e = here = и
6) pin + e = pine = ай
7) con + e = cone = оу