The I Before E Rule
Write ie in words with an /ee/ sound (believe, piece, field) and ei straight after a c (receive, ceiling) — but the rhyme has so many exceptions that it is worth learning the exceptions instead of trusting it.
Year 5-6 / 4th-5th grade · usually taught with the 5th grade word list
Practice these words
These words drill the rule and its exceptions together, which is the only way the exceptions stick. SpellCrush reads each one aloud, uses it in a sentence, and gives a hint if your child stalls.
One honest caveat. Practice is word-by-word: there is no mode yet that shows a sentence with a gap and asks which spelling fits. Everything else is the real session — each word read aloud, its picture, its definition, a hint, three attempts and instant feedback.
The rule as it is taught
I before E, except after C.
How much you can trust it
Poor. It only speaks to the ee sound, and even there it is broken by weird, seize, neither, protein and the whole -cient family. Treat it as a hint, not a rule.
The version that actually works
The rule only applies when the two letters together make an /ee/ sound. If the sound is /ay/ as in neighbor and weigh, or /eye/ as in height, the spelling is normally ei and the rhyme has nothing to say about it. Even inside the /ee/ sound the rule leaks: seize, weird, neither and protein all break it, and the -cience and -cient endings (science, ancient, sufficient) put ie straight after a c.
Words that follow the rule
- believe
- achieve
- piece
- field
- chief
- grief
- niece
- shield
- thief
- receive
- deceive
- ceiling
- perceive
- receipt
Words that break it
- their
- weird
- seize
- neither
- either
- foreign
- height
- protein
- caffeine
- science
- society
- ancient
- sufficient
- efficient
- conscience
What to tell a child
There is a longer version of the rhyme — i before e, except after c, or when sounding like ay, as in neighbor and weigh — and it is a real improvement. It still does not cover weird, seize, neither, foreign or height.
Linguists who have counted put the reliability of the short rhyme at well under three quarters of the words it claims to cover. A rule a child gets wrong one word in four is not a rule, it is a coin toss with a jingle attached.
What to do instead: teach the /ee/ test (does the pair sound like ee? then ie, unless a c comes first), then treat the fifteen exceptions above as sight words. Fifteen words is a week of practice. The rhyme is a memory aid, not a law.
The most useful single sentence for a child: weird is weird. If they remember that one word breaks the rule, they will stop trusting the rhyme blindly, which is the whole point.
Related pages
Commonly Misspelled Words
The 100 words people get wrong most, each with the misspelling they actually type and the one letter that trips them - from friend to accommodate.
Plural Rules
Add -s, use -es after s, x, z, ch and sh, and turn consonant plus y into -ies. Then the irregulars - children, mice, feet - which no rule generates.
Spelling Rules
Five spelling rules children can rely on, each with the exception set the classroom version leaves out - so nobody learns a rule that quietly fails.
Frequently asked
What is the i before e, except after c rule?
I before E, except after C. Write ie in words with an /ee/ sound (believe, piece, field) and ei straight after a c (receive, ceiling) — but the rhyme has so many exceptions that it is worth learning the exceptions instead of trusting it.
Does the i before e, except after c rule always work?
Poor. It only speaks to the ee sound, and even there it is broken by weird, seize, neither, protein and the whole -cient family. Treat it as a hint, not a rule. The exceptions worth knowing are: their; weird; seize; neither; either; foreign; height; protein.
When is this taught?
Year 5-6 / 4th-5th grade. It is usually introduced alongside the 5th grade spelling list, and revisited whenever a new ending is added to a word.