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Apostrophes: Possessive Form

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Apostrophes: Possessive Form
CCSS.ELA-LITERACY.L.2.2.C

Basics on the topic Apostrophes: Possessive Form

Do you want to know how to use a possessive apostrophe? Learn everything about when to use singular and plural words with a possessive apostrophe through our video and activities!

Apostrophes and Possessive Form – Definition

The possessive form is a way to show belonging or ownership in writing and speaking. The possessive form can help us understand when something belongs to someone or something else. It also shows the connection to a place or a relationship with someone or something.

We show possession by adding an apostrophe and the letter s to the noun that something belongs to: girl’s dress.

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Apostrophes and Possessive Form – Strategy

When we want to use an apostrophe for possessive nouns, we need to follow several simple steps:

  • First, we identify who or what something belongs to (a noun).
  • Then, we identify the thing or the relationship that the noun has.
  • Lastly, we add an apostrophe and the letter s to the end of the word.

For example: if we want to say that the book belongs to Tom, we need to know who something belongs to (Tom). Then, we identify the thing that belongs to him (book). Finally, we can add an apostrophe and the letter s to the end of the noun (Tom’s). What is the possessive form of the book belonging to Tom? Tom’s book

Apostrophes and Possessive Form – Rules

There are several rules for using an apostrophe in possessive nouns. In the example above, we looked at a singular noun. Now, let’s take a look at the use of an apostrophe in plural possessive nouns.

Plural nouns are usually followed by the letter s, for example: friends, parents, cats, toys. When we make possessive plural nouns, we add an apostrophe after the last letter, and do not add another s. For example: friends’ house, cats’ toys, parents’ car.

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Even though most plural nouns are formed by adding the letter s at the end of the word, some plural nouns don’t follow this rule. They are called irregular plural nouns. Some examples of irregular plural nouns are: children, people, men, women, mice, sheep, fish. To make an irregular plural noun possessive, we add an apostrophe and the letter s to the end of the word: children’s cookies, people’s choice, mice’s food.

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Additional Information About Apostrophes and Possessive Form

Apostrophes and Possessive Form – Summary

To show belonging or ownership in writing and speaking, we use a possessive form. In singular and irregular plural nouns, we make a possessive form by adding an apostrophe and the letter s to the noun that something belongs to. In regular plural nouns, we add an apostrophe after the last letter, and do not add another s. See examples below:

Type Example Possessive Form
Singular Nouns Possessives cat cat’s toy
Singular Nouns Possessives Mike Mike’s uniform
Singular Nouns Possessives girl girl’s glasses
Regular Plural Nouns Possessives dogs dogs’ park
Regular Plural Nouns Possessives girls girls’ books
Regular Plural Nouns Possessives parents parents’ house
Irregular Plural Nouns Possessives children children’s show
Irregular Plural Nouns Possessives women women’s bathroom
Irregular Plural Nouns Possessives sheep sheep’s habitat

Now you know everything about the use of a possessive apostrophe. For more practice, check out our video and activities!

Frequently Asked Questions about Apostrophes and Possessive Form

What is a possessive apostrophe?
What are the 3 rules for apostrophes in possessive nouns?
What is a plural possessive apostrophe example?
Does possessive always have an apostrophe?

Transcript Apostrophes: Possessive Form

“Koko, I don’t have enough room to write my name on the label for my invention!” “How will they know it belongs to me?” We can help show the invention belongs to Pip by learning about... apostrophes- possessive form. In sentences, we use the possessive form to show that something belongs to a person... or an animal. It also shows if something is connected to a place,... or has a relationship with someone or something else. We show possession by adding a special mark, called an apostrophe, and the letter, to the end of the noun that has something. Let’s use Pip’s example to see how we use apostrophes to show the possessive form. The invention belonging to Pip. First, identify who HAS something in the sentence. Pip has something... Next, identify the THING that Pip has. He has an invention. The possessive form would say, Pip's invention. By adding an apostrophe, becomes the possessive form for all singular nouns or nouns that only refer to one noun. Let's practice the singular possessive form. The sister belonging to Michael. First, identify who has something. (...) Michael. Next, identify the RELATIONSHIP that Michael has. (...) He has a sister. What is the singular possessive form of the sister belonging to Michael? (...) Michael's sister. Sometimes we have PLURAL NOUNS that have something else. Remember that plural means more than one and is usually followed by an s. The prize belonging to the winners. First, identify who has something in the sentence. (...) Winners. Next, identify the thing that the winners have. (...) Prize. When we have a plural possessive noun, we still add to the end of the word, but we now put an apostrophe AFTER the last letter, . The prize belonging to the winners becomes the winners' prize with an apostrophe. Let's practice another plural possessive form example. The car belonging to the parents. First, identify who has something. (...) Parents. Next, identify the thing the parents have. (...) Car. What is the plural possessive form of 'the car belonging to the parents'? Parents' car(...) with an apostrophe. We have one more possessive form rule to practice. We know that some plural nouns don't follow the rules, like people and fish. These are known as irregular plural nouns. To make an irregular plural noun possessive, we add an apostrophe to the end of the word show. An example of this would be, 'the cookies belonging to the children.' First, identify who has something in the sentence. (...) Children. Next, identify the thing the children have. (...) Cookies. Since children is an irregular plural, we would add apostrophe ... What is the irregular plural possessive form of 'the cookies belonging to the children'? The children's cookies. What is the plural possessive of 'the house belonging to the family'? (...) First, identify who has something. (...) Family. Now, identify what place the family have? (...) House. What does the house belonging to the family become? (...) Family's house. While we head over to see the invention contest, let's review. Remember,... We show possession by adding a special mark, called an apostrophe, and the letter to the end of the noun that has something. The apostrophe is used to show the singular possessive form. apostrophe for plural possessive... and an apostrophe when it is an irregular plural noun.

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Apostrophes: Possessive Form exercise

Would you like to apply the knowledge you’ve learned? You can review and practice it with the tasks for the video Apostrophes: Possessive Form .
  • Identifying the parts of possessive sentences.

    Hints

    Look at the image for clues. The 'who' is holding something.

    Next, find out 'what' the penguin has. Check the image to help you!

    Solution

    The penguin has something. So, the penguin should be highlighted in blue.

    The fish should be highlighted in green. It is the what the penguin has.

    Tip: We could also write this sentence as, 'The penguin's fish'!

  • Expressing possession with Nia the mouse.

    Hints

    First, find who has something and what they have.

    Then, say whether 'who has something' is singular or plural.

    Singular means one. Plural means more than one.

    Remember: add 's to show possession for all singular nouns.

    For example, 'the dress belonging to the girl' will be 'the girl's dress'!

    Solution

    The mouse's cheese.

    The mouse has something. She has the cheese!

    'Mouse' is singular, so add 's to show possession.

  • Adding apostrophes to regular nouns.

    Hints

    First, say if the missing noun is singular or plural.

    Singular means only one. Plural means more than one.

    If the noun is singular, add 's.

    If the noun is regular plural, add an ' after the s.

    For example:

    'The cows' grass.'

    Solution
    1. The tree's leaves. 'Tree' is singular. So, add 's.
    2. The girls' bikes. 'Girls' is regular plural. So, add an ' at the end.
    3. The boys' shirts. 'Boys' is regular plural. So, add ' after the s.
  • Can you spot the errors on Pip's homework?

    Hints

    First, say if the highlighted word is singular or plural. Use the first sentence in each problem to help you.

    If the noun is plural, say if it is regular or irregular plural.

    Regular plural nouns end in s.

    Remember: the possessive form for singular nouns and irregular plural nouns is 's.

    Add ' for the possessive form of regular plural nouns.

    Solution
    1. Incorrect. The apostrophe is added to the wrong word. So, the correct sentence is 'My aunt's kite'.
    2. Correct. 'Friends' is regular plural. So, we add ' after the s.
    3. Incorrect. 'Pirate' is singular. So, the correct sentence is 'The pirate's sword'.
    4. Incorrect. 'Sheep' is irregular plural. So, the correct sentence is 'The sheep's wool'.
    5. Correct. 'Men' is irregular plural. So, we add 's to the end of the word.
  • Rewrite the sentence.

    Hints

    Look at the example below:

    This picture shows a flower belonging to a skunk. The sentence can be be written as:

    'The skunk's flower'.

    First, find who has something.

    Then, find what they have.

    Add the 's at the end of who has something.

    Solution

    The dog's bone.

    • Identify who has something. The dog has something.
    • Then, identify what the dog has. The dog has a bone.
    • Add the apostrophe s after 'dog'. This shows that the bone belongs to the dog!
  • Writing sentences with apostrophes.

    Hints

    First, find who has something and what they have.

    Then, find out if the noun who has something is singular or plural.

    Use the pictures to help you.

    If the noun is plural, say if it is regular or irregular plural.

    Regular plural nouns end in s.

    Remember: the possessive form for singular nouns and irregular plural nouns is 's.

    Add ' for the possessive form of regular plural nouns.

    Solution

    The bird's book. 'Bird' is singular because there is one bird in the image. So, add 's.

    The dogs' rug. 'Dogs' is regular plural because there is more than one dog in the image. So, add ' after the s.

    The fish's tank. 'Fish' can both singular and irregular plural. Here, it is plural because there is more than one fish in the image. So, add 's.

    The ghosts' cookies. 'Ghosts' is regular plural because there is more than one ghost in the image. So, add ' after the s.