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Possessive nouns show ownership over other nouns.
The child grabbed the dog'stail.
dog owns tail
Last night's storm damaged the Larsen family's house.
night owns storm family owns house
The teachers' lounge is off-limits to students.
teachers own lounge
Singular possessive nouns end in an apostrophe and s. 's
Jamal's house was featured in last week's newspaper.
A friendly neighbor returned the child's ball.
Often, writers mistakenly add 's to make a noun plural.
Too many car's speed through Mark's neighbor.
The 's after car is incorrect.
The 's after Mark is correct.
Too many cars speed through Mark's neighborhood.
Irregular plural nouns such as children, men, women, mice, and deer are made possessive the same way that singular nouns are made possessive.
The children's swing set needs to be replaced.
The women's bathroom is closed for cleaning.
Regular plural nouns end with s. To make regular plural nouns possessive, add an apostrophe after the s. s'
At the zoo, we visited all the animals' cages.
animals own cages
Professional athletes' salaries are too high.
athletes own salaries
The school plans to renovate the musicians' practice room.
musicians own practice room