1. Possessive
Nouns

2. Example: The paintbrush that belonged to the artist was lost.
Words that show ownership are called possessive nouns.
A noun is possessive if a phrase can be changed to say that an item or idea belongs to someone else.
Example: The paintbrush that belonged to the artist was lost.
The artist’s paintbrush was lost.

3. Noun Possessive Pam Pam’s cat cat the cat’s tail Sam Sam’s knee
Possessive nouns are used to show that someone owns something.
An apostrophe (') is used to show the ownership.

4. Rule
To show the possessive of singular nouns add 's.
Examples: 
Fluffy Fluffy’s tail
Sally Sally’s recipe
the man the man’s hat
the teacher the teacher’s pencil

5. The possessive form can also show an feature or characteristic.
Examples: 
river river’s edge
train train’s wheels
sun sun’s heat

6. Possessive Nouns Rules 1-2
To show possession of singular nouns add 's.  
To show possession of plural nouns ending in s add an apostrophe ('). Examples: runners => runners' shoes
cows => cows' meal
trees => trees' apples  

7. Possessive Nouns Rule 3
To show possession of plural nouns NOT ending in s add an apostrophe and a s (‘s).
teeth => teeth’s fillings
children => children’s food

8. Plural Possessives
If the plural ends in s just add an apostrophe. If the plural does not end in s add an apostrophe and an s.
1 person 1 item
2 people 2 items
the boy’s jacket
the boys’ jackets
my parent’s car
my parents’ cars
my boss’s hat
my bosses’ hats
the woman’s dress
the women’s dresses
the child’s toy
the children’s toys
the passerby’s glance
the passersby’s glances

9. the kid’s bike (I kid, 1 bike)
the kids’ bike (2 kids, 1 bike)
the kids’ bikes (2 kids, 2 bikes)