When you want to show that something belongs to that person or thing, you add a possessive apostrophe and an 's'. For example: The cat's tail was fluffy. The 's' shows that the tail belongs to the ...

She adds: "If we're all honest about it - every single one of us have messed up our 'its' and our 'it's'. It's confusing." Both Curzan and Petelin say the end of The Apostrophe Society is not the ...