Punctuation Rules
Apostrophes, commas and speech marks — the short list of rules GL tests and the errors it hides.
Punctuation questions look scary but come from a tiny list of rules — apostrophes, commas and speech marks do almost all the work. Learn the short list and these become some of the quickest marks on the paper.
The apostrophe checker
Step 1 · is it a squeeze?
it's = it is, don't = do not
Step 2 · one owner?
the dog's bowl — apostrophe then s
Step 3 · lots of owners?
the dogs' bowl — s then apostrophe
Step 4 · just a plural?
two bananas — NO apostrophe, ever
Speech mark rules
- punctuation lives inside
- "Wait for me," said Jo.
- speech starts big
- capital letter on the first spoken word
- speaker first?
- comma before the speech: Jo said, "Wait."
- spoken question
- "Are we late?" he asked — ? goes inside
- new speaker
- new line
⚠ Watch out
The greengrocer's apostrophe: 'apple's for sale' is ALWAYS wrong. An apostrophe never, ever makes a plural — if it just means 'more than one', leave it alone.
⚠ Watch out
Plural owners: count them! 'The girl's coats' means ONE girl owns the coats; 'the girls' coats' means several girls do. GL plants the apostrophe on the wrong side on purpose — ask 'how many owners?' before you choose.
Remember it like this
“It's = it is. Every single time.”
If you can't swap in 'it is' (or 'it has') and still make sense, the word you want is its — no apostrophe.
✏ Your turn
Find the group with the punctuation mistake: A) "Hurry up" said Mum, | B) grabbing her keys | C) as the bus appeared | D) at the end of the road.
Show the answerHide the answer
- Group A has speech — spoken words carry their punctuation INSIDE the marks
- 'Hurry up' crashes straight into 'said Mum' with nothing before the closing mark
- It should be: "Hurry up," said Mum.
- B, C and D need no punctuation at all
A (it should be "Hurry up," said Mum)
For parents — the full topic guide
GL tests punctuation the same way as spelling: one sentence split into four groups (A–D), find the group with the punctuation or capital-letter mistake — sometimes with a "no mistake" option. The planted errors come from a surprisingly short list, so this section rewards targeted practice more than any other.
Apostrophes — the biggest mark-winner
Apostrophes do exactly two jobs:
- Squeezing letters out (contraction): don't (do not), can't, it's (it is / it has).
- Showing who owns something (possession):
- one owner → add 's: the dog's bowl (one dog)
- plural owners ending in s → apostrophe after the s: the dogs' bowl (several dogs)
- irregular plurals → add 's: the children's coats, the men's room
The golden test for its/it's: swap in "it is". "The cat licked it is paw" — nonsense, so it must be its. This single check is worth a mark on almost every paper.
And the iron rule: an apostrophe never makes a plural. "Apple's for sale" is always wrong.
Commas
- Lists: pens, pencils, rulers and rubbers — commas between items.
- After a fronted opener: After lunch, we walked to the park.
- Paired commas around extra information: My uncle, who lives in Leeds, is visiting. Both commas are needed — one missing is a classic planted error.
- Direct address: Come here, Sam.
Speech marks
Four rules cover nearly every GL speech question:
- Only the spoken words go inside the marks.
- Punctuation goes before the closing mark: "Wait for me," said Jo. — never "Wait for me", said Jo.
- Speech starts with a capital letter, and when the speaker comes first, a comma comes before the speech opens: Jo said, "Wait for me."
- If the speech asks something, the question mark goes inside: "Are we late?" he asked.
Capitals and end marks
Names, places, days, months and I take capitals. Every sentence needs an end mark, and a sentence that asks needs a question mark — but only a real question: "He wondered if they were late" is a report, not a question, so it takes a full stop.
Common 11+ traps
⚠️ it's/its — the most-tested apostrophe on the paper. Always run the "it is" swap before moving on.
⚠️ The greengrocer's apostrophe. Plurals dressed up with apostrophes (banana's, video's). If the word just means "more than one", there is no apostrophe — ever.
⚠️ Punctuation outside the speech marks, or a missing comma before the closing mark. Whatever is spoken carries its punctuation inside the marks.
⚠️ Plural possession counting. The girl's coats (one girl) vs the girls' coats (several girls). The apostrophe's position answers "how many owners?" — and GL plants the wrong position deliberately, so make your child count the owners.
⚠️ Missing question mark inside speech. "Are we late," he asked is wrong — a spoken question keeps its question mark.
Coaching at home
Apostrophe errors are everywhere in the real world — shop signs, menus, market stalls. Make spotting them a family game. Catching "potato's £1" at the greengrocer is the same skill the test wants, and children love catching grown-ups out.
Worked examples
Read through each example. Cover the steps and try it yourself first if you can.
- 1
The it's/its swap
Find the group with the punctuation mistake: A) The cat licked | B) it's paw carefully | C) and curled up | D) on the warm rug.
Steps
- Group B contains an apostrophe — run the golden test: swap in 'it is'.
- 'The cat licked IT IS paw' — nonsense.
- So this is belonging-its, which never takes an apostrophe: 'its paw'.
- Check the remaining groups: no punctuation is needed or misplaced in A, C or D.
Answer
B (it's → its)
- 2
Punctuation inside the speech marks
Find the group with the punctuation mistake: A) "Hurry up" said Mum, | B) grabbing her keys | C) as the bus appeared | D) at the end of the road.
Steps
- Group A contains speech — check the closing mark rule: spoken words carry their punctuation INSIDE.
- 'Hurry up' runs straight into 'said Mum' with nothing before the closing mark.
- It should be: "Hurry up," said Mum. — comma inside the speech marks.
- B, C and D need no punctuation, so A is the answer.
Answer
A (missing comma inside the closing speech mark: "Hurry up," said Mum)
- 3
Counting the owners
Find the group with the punctuation mistake: A) All the teachers | B) put the childrens' paintings | C) on the wall | D) outside the hall.
Steps
- Group B has a possession apostrophe — count the owners: the paintings belong to the children.
- 'Children' is already a plural (an irregular one — no s added), so it takes 's like a single owner: children's.
- 'childrens'' is never correct — the word 'childrens' does not exist.
- The other groups carry no punctuation errors.
Answer
B (childrens' → children's)
Ready to practise this topic?
Try a full paper — questions on punctuation rules show up in most 11+ maths and VR papers.