The long 'ee' phoneme (sound) can be spelt in many different ways.
For example:
beef cheap key chief deceive
It is often hard to know when to use 'ie' and when to use 'ei'.
For example, is it 'believe' or 'beleive'?
This rhyme can help:
'i before e except after c'.
For most words we use 'ie':
thief
believe
piece
However, if it comes straight after the letter 'c' then we use 'ei':
receive
ceiling
As always, there are some exceptions (protein, seize, caffeine), but the rule generally holds true.
Let's try some questions now.