11+ Homophones and Commonly Confused Words

In short

• Homophone errors are the single most common avoidable mistake in 11+ written English, because a spellchecker never flags them and the child hears no difference.
• A core set of roughly a dozen pairs accounts for most of the lost marks — their/there/they're, its/it's, your/you're, to/too/two and their relatives.
• Its and it's is the most-missed pair of all, and the rule is genuinely simple: it's only ever means it is or it has.
• Confusable pairs that are not homophones — affect and effect, practice and practise — appear in proofreading questions and reward the same fix.
• The reliable cure is substitution: teach the child to expand the contraction in their head and hear whether the sentence still works.

The short answer

Homophones are words that sound identical but are spelled differently and mean different things, and they cost 11+ candidates more marks than any other category of spelling error. The reason is structural rather than a matter of ability. A child writing at speed hears the word in their head, writes the version they use most often, and moves on — and because every version is a real word, nothing looks wrong on the page and no spellchecker would flag it in a typed document. Proofreading and error-spotting questions exploit this deliberately, because they are an efficient way to separate children who genuinely understand the grammar from those who write by ear. The good news is that the territory is small and finite: a core set of about a dozen pairs covers most of what appears, and each has a simple test a child can apply in a second. This guide covers the set, the reliable tests, and how to fix an error that has become a habit. It sits alongside our broader 11+ SPaG overview.

The core set worth drilling

Start with the ones that appear most and cost most. Their, there and they're: their shows possession, there indicates place or is the subject of an existential sentence, and they're is only ever they are. Your and you're follows the identical logic. Its and it's is the pair most often missed and the one most worth over-teaching, because the apostrophe here is counter-intuitive — its shows possession despite having no apostrophe, and it's is exclusively it is or it has. To, too and two: to is a preposition or part of an infinitive, too means also or excessively, two is the number. Then a second tier that appears regularly without dominating: were, we're and where; whose and who's; then and than, which are not strictly homophones but are confused constantly in speech; and lose and loose. A child who reliably handles that list has removed most of their exposure.

Beyond homophones: the confusable pairs

A related family causes similar trouble without being true homophones, and 11+ proofreading questions use them freely. Affect and effect is the classic: affect is almost always the verb, effect almost always the noun, and the exceptions are rare enough that the rule is safe at this level. Practice and practise, and licence and license, follow the British convention that the noun takes c and the verb takes s — a distinction that has quietly disappeared from American usage, which is why children who read a lot of American fiction get it wrong. Stationary and stationery, complement and compliment, principal and principle, and accept and except round out the set. These reward a different technique from the homophones: rather than a substitution test, they need a memorable hook — the letter a in stationary for at rest, the e in stationery for envelope. One hook per pair, learned properly, is enough.

How do we fix an error that has become a habit?

Substitution, applied consistently until it becomes automatic. For every contraction pair, the child expands the contraction in their head and listens to whether the sentence survives. They're going home becomes they are going home, which works, so they're is right. Their going home becomes there is going home or they are going home only if you substitute the wrong thing, which is exactly the point — the test forces the child to check rather than guess. For its and it's the same test is even cleaner, because it's has exactly one expansion. The reason substitution beats rule-recitation is that it produces an answer in the moment, under time pressure, without requiring the child to remember which rule applies. Practise it deliberately for a fortnight — every time they write one of these words, they say the expansion aloud — and it becomes automatic. A habit formed by writing quickly is unlearned by writing slowly for a short period, not by being told the rule again.

Which homophones come up most in the 11+?

The apostrophe-bearing contractions dominate, because they test two things at once — spelling and grammatical understanding — which makes them efficient exam questions. Expect their, there and they're, its and it's, and your and you're to appear disproportionately in proofreading items across GL-style papers. Where a paper includes extended writing, as the Essex CSSE test does, the same errors cost accuracy marks in the child's own prose rather than in a spotting exercise, which means a child preparing for a written paper should drill them harder rather than less. Board format therefore changes the emphasis slightly: multiple-choice regions reward recognition, written regions reward production. If you are not certain which your target schools use, the free exam board finder settles it, and our board comparison explains what each format actually asks for.

Does typing and autocorrect make this worse?

Yes, in a specific and relevant way. Autocorrect fixes misspellings, which are non-words, but it cannot fix homophone errors, because every option is a legitimate word in the dictionary. A child who does most of their writing on a screen therefore gets corrective feedback on exactly the errors that the 11+ does not care much about, and no feedback at all on the errors it cares about most. The practical implication is not to ban screens but to make sure a meaningful share of practice writing happens by hand, marked by a human, with homophone errors circled specifically. It is also worth noting that children who read widely still make these errors, because the words are visually distinct but aurally identical and the mistake happens at the point of production. Wide reading, covered in our vocabulary guide, builds many things — it does not reliably build this.

Where GrammarPrep fits

GrammarPrep's English strand includes proofreading and error-spotting items built around exactly this confusable set, and because the adaptive engine tracks errors by type rather than by individual question, it notices when a child is repeatedly missing possessive apostrophes as opposed to simply having a bad day. That distinction is what turns practice into targeted correction. Sessions are short by design, which suits a habit-fixing drill better than a long weekend session. Try the free taster to see the question style, or the 15-minute diagnostic for a full starting profile.