An apostrophe shows possession or ownership.
- singular noun + ‘s
- e.g. The boy’s book is on the table. (one boy)
- The book of the boy is on the table.
- Plural noun ending in s + ’
- e.g. The boys’ books were lost in the storm. (More than one boy)
- The books of the boys were lost in the storm.
- If there is a special plural form, add ‘s
- e.g. the children’s books, the men’s hats, the women’s dresses