Possessive Pronouns

Overview

A possessive pronoun is a word that shows ownership and replaces an entire noun phrase so it does not need to be repeated. Instead of saying That is Maria's bag and this is my bag, a speaker can say That is Maria's and this is mine. The possessive pronoun mine stands in for my bag, carrying both the sense of ownership and the reference to the noun without restating it.

English has six possessive pronouns: mine, yours, his, hers, ours, and theirs. Each one corresponds to a subject pronoun, so the set is systematic and learnable in a single pass. The confusion they share with possessive adjectives (my, your, his, her, our, their) is the most common source of error at this level. These two sets look similar and overlap in some forms, but they behave differently in sentences and are not interchangeable.

The Full Set of Possessive Pronouns

Each possessive pronoun corresponds to a subject pronoun. The relationship is consistent across the whole set.

There is no possessive pronoun for it. English does not use its as a standalone possessive pronoun. When referring to something belonging to an animal or object already named, speakers restructure the sentence rather than using a pronoun in this slot.

How Possessive Pronouns Work in Sentences

A possessive pronoun replaces the entire noun phrase that indicates ownership, including the noun itself. It stands alone and does not precede any noun in the sentence. This is what distinguishes it most clearly from a possessive adjective, which must always be followed by a noun.

A sentence like That is yours jacket is incorrect because yours already stands in for the full noun phrase and cannot precede another noun.

Possessive Pronouns After Of

One natural pattern in English places a possessive pronoun after the preposition of. This construction indicates that something belongs to the person referred to, often within a larger noun phrase involving a number or the word a.

This structure allows the speaker to introduce a person or thing while simultaneously indicating ownership. It appears frequently in both spoken and written English.

Possessive Pronouns vs. Possessive Adjectives

Both sets express ownership and share some identical forms, which is a common source of confusion. The key difference is function: a possessive adjective modifies a noun that follows it, while a possessive pronoun replaces the entire noun phrase.

The third person singular masculine form his is the only form shared by both categories. All other forms differ. Her is the possessive adjective; hers is the possessive pronoun. Their is the possessive adjective; theirs is the possessive pronoun.

A possessive adjective always needs a noun immediately after it. A possessive pronoun never has a noun after it in the same phrase.

Possessive Pronouns in Questions and Responses

Possessive pronouns appear frequently in questions about ownership and in the responses that follow.

The question word whose specifically asks about ownership and is typically answered with a possessive pronoun or a possessive noun phrase.

Common Mistakes

Mistake 1: Placing a Noun After a Possessive Pronoun

A possessive pronoun already stands in for a noun phrase. Adding a noun after it is redundant and grammatically incorrect.

Mistake 2: Using a Possessive Adjective Instead of a Possessive Pronoun

When the noun has already been mentioned and should not be repeated, a possessive pronoun is required. A possessive adjective in this position creates an incomplete phrase because no noun follows it.

Mistake 3: Writing Possessive Pronouns With an Apostrophe

Possessive pronouns never take an apostrophe. The forms their's, your's, her's, and our's do not exist in standard English. Apostrophes in these words are a direct confusion with contractions: they're means they are, not a possessive form.

Mistake 4: Using Her Instead of Hers

Her is a possessive adjective and must be followed by a noun. When no noun is present and a standalone possessive pronoun is needed, hers is required.

Mistake 5: Using Their Instead of Theirs

Their is a possessive adjective and must precede a noun. When no noun follows, the correct form is theirs.

Mistake 6: Confusing Its With a Possessive Pronoun

Its is a possessive adjective, not a possessive pronoun. English does not use its in the standalone possessive pronoun slot the way it uses mine, yours, or hers. Sentences that need this meaning must be restructured.

Practice Exercises

Exercise 1: Choose the Correct Form

Choose the correct possessive pronoun or possessive adjective from the brackets to complete each sentence.

1. I left (my / mine) keys on the table.
2. This is not (your / yours). It belongs to someone else.
3. She forgot (her / hers) passport at the hotel.
4. The blue bicycle is (our / ours).
5. Is this coat (their / theirs)?
6. He lent _______ notes to a classmate. (his, used as a possessive adjective)

Exercise 2: Replace With a Possessive Pronoun

Rewrite each sentence by replacing the underlined phrase with the correct possessive pronoun.

1. That jacket is my jacket.
2. The last seat on the left is her seat.
3. These results are better than our results from last quarter.
4. He said the mistake was his mistake.
5. Is this equipment their equipment?

Exercise 3: Correct the Mistake

Each sentence contains one error related to possessive pronouns. Rewrite it correctly.

1. I finished my homework. Have you finished your?
2. The apartment on the top floor is their's.
3. She has her tickets. Do you have your's?
4. That idea was originally her, not mine.
5. Their strategy was more effective than our.

Exercise 4: Complete With the Correct Possessive Pronoun

Fill in the blank with the correct possessive pronoun: mine, yours, his, hers, ours, or theirs.

1. We booked a table, but I think ______ is the one by the window.
2. She left her phone on the desk. Is this one ______?
3. I did not take your umbrella. I have ______ right here.
4. They won the contract. The credit is entirely ______.
5. He said the painting was not ______ and he had never seen it before.

Summary

No noun follows a possessive pronoun, no apostrophe appears in any of the forms, and the correct form depends on who the owner is, not what is owned.