Words with "ee" spelling:
* bee
* tree
* see
* feet
* sheep
* deep
* sleep
* green
* meet
* keep
Words with "ea" spelling:
* eat
* team
* heat
* least
* read
* reach
* clean
* cream
* sea
* meal
Words with "ey" spelling:
* key
* they
* grey
* prey
* whey
* obey
* monkey
Words with other spellings:
* people
* machine
* police
* complete
* receive
* believe
* field
* yield
* chief
Other important points:
* The long e sound can also be represented by "ie" as in "lie", "ei" as in "receive", and "y" as in "my".
* The long e sound is not always represented by the same spelling. Sometimes, the same spelling can represent different sounds, for example, the "ea" in "great" has a different sound from the "ea" in "team".
I hope these examples help you understand the long e sound!