The pause that saves lives
'Let's eat, Grandma' and 'Let's eat Grandma' differ by one comma — and one invites her to dinner while the other is alarming. Punctuation is the set of road signs that tell a reader when to pause, stop, and how to take your meaning.
Small marks, big difference
Punctuation guides how a sentence is read. Commas separate items in a list and set off clauses; apostrophes show possession ('the dog's bone') or contraction ('do not' → 'don't'). Punctuation can change meaning entirely.
its vs. it's
'It's' is only ever short for 'it is' (or 'it has'). 'Its' shows possession — no apostrophe. Test: if 'it is' fits, use 'it's'.
'Let's eat, Grandma' vs. 'Let's eat Grandma' — one comma decides whether Grandma is dinner.
Lab · its or it's?
- Fill the blank: 'The cat licked ___ paw.'
- Test whether 'it is' fits the sentence.
- Choose the correct form.
What you should see: 'It is paw' makes no sense, so it's possessive: 'its paw' — no apostrophe.