The Full Rule (That Most People Don't Know)
"I before E, except after C —
when the sound is 'ee'"
That last part is crucial. The rule only applies when the letters make an "ee" sound (like in believe or receive). When "ei" or "ie" makes a different sound — like "ay" in weigh or "eye" in height — the rule doesn't apply.
Understanding this distinction is the key to mastering one of the trickiest spelling patterns in English. Let's break down exactly when it works — and when it spectacularly fails.
When It Works: After C → Use EI
The "except after C" part is remarkably reliable. When C comes right before the "ee" sound, the order flips to EI. This pattern appears in dozens of common words:
to get or be given something
to mislead or trick
to form an idea or imagine
to become aware of
proof of purchase or payment
the upper interior surface of a room
Memory trick: "I received a receipt from the ceiling" — all three words follow the after-C pattern perfectly.
When It Works: No C Before → Use IE
When there's no C before the "ee" sound, stick with IE. This is the default pattern for dozens of everyday words:
to accept as true
a part of something
to reach a goal
an area of land or study
short in duration
daughter of one's sibling
Memory trick: "Never believe a lie" — both words use IE, no C in sight.
When It Fails: The Weird Exceptions
Here's where the rule breaks down. These common words break the pattern because they don't make an "ee" sound — or they're just plain weird:
Makes an "ear" sound, not "ee" — and yes, it's weird that "weird" breaks the rule
Makes "eez" sound but no C — one of the most common rule-breakers
Makes "ee" or "eye" sound depending on dialect
Makes "ane" sound, from French origin
Makes "ee" sound but no C
Makes "ee" sound but no C
Has C but keeps IE — makes "eye" sound, not "ee"
Has C but keeps IE — makes "eez" sound
The verdict: The rule works about 75% of the time for "ee" sounds. For everything else, you'll need to memorize the exceptions — or practice them until they stick.
Practice Sentences
I believe I will receive the package tomorrow.
The thief tried to deceive us, but we didn't believe his story.
She couldn't conceive of a world without art and field trips.
The ceiling had a piece of molding that needed repair.
My niece wants to achieve her goal of becoming a scientist.
Spot the pattern: Which spelling is correct?
Frequently Asked Questions
What is the "i before e except after c" rule?
The rule states: "I before E, except after C" when the combination sounds like "ee". This applies to words like believe, piece, receive, and deceive. The rule helps remember that when C precedes the combination, the order flips to EI (receive), but otherwise use IE (believe).
What are common exceptions to the "i before e" rule?
Major exceptions include: weird, seize, either, neither, foreign, protein, caffeine, and science. The rule works best when the combination makes an "ee" sound. When it sounds different (like "ay" in weigh or neighbor), exceptions are common. Overall, the rule is about 75% reliable for "ee" sounds.
How do I remember when to use EI after C?
Remember: when C comes before the "ee" sound, flip to EI. Think of receive, deceive, conceive, perceive. The mnemonic "Never believe a lie" helps with IE words (no C), while "I received a receipt from the ceiling" reminds you of the after-C pattern (all use EI after C). Practice these words on SpellCamp with spaced repetition to make the pattern stick.