How do you know where the apostrophe goes on a possessive noun?

Answer 1

The apostrophe goes after the person or thing that does the possessing:

'This coat belongs to my aunt. It is my aunt'scoat.'

'That house belongs to my brother. It is my brother's house.'

'The house next door to it belongs to my cousins. It is my cousins' house.'

'The car belongs to my parents. It is my parents'car.'

'This crown belongs to the prince. It is the prince's crown.'

'Those crowns belong to the princesses. They are the princesses' crowns.'

'The toys belong to the children. They are the children's toys.'

First, decide who or what does the possessing (singular or plural). Then, put the apostrophe in place. Then, add an sif you are dealing with a singular, or a plural that does not end in s, but not if you are dealing with a plural that ends in s.

Answer 2

The general rule for placing the apostrophe in a possessive noun is to add 's directly after the noun. For singular nouns, like "dog" or "book," you would write "dog's" or "book's" to indicate possession. For plural nouns ending in -s, you would add a simple apostrophe after the -s, like "dogs'" or "books'".