The apostrophe can be a tricky thing to get right so the children at Swinemoor Primary School decided to make a film with 5 simple rules for its correct use.
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To show possession by one owner, add an apostrophe
and the letter s to the owner.
To show ownership of plural nouns, add an apostrophe after the s.
Irregular plural possessives - Add an apostrohphe after the owner, then add an s at the end.
Compound plural possessives - If two people own something together, only use one apostrophe.
Not every plural noun has an apostrophe!