Lesson 13 – Possessive Pronouns & Whose

What Are Possessives?

Two types — adjectives and pronouns — both show ownership

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Definition

In English, we show possession (who something belongs to) in two main ways. Both types change based on the subject — the person who owns the thing, not the thing itself.

1. Possessive Adjectives (my, your, his, her, its, our, their) — always come before a noun and describe it.

2. Possessive Pronouns (mine, yours, his, hers, its, ours, theirs) — stand alone, replacing a noun. They show the same ownership but do not need a noun after them.

Possessive Adjective (PA)

Comes BEFORE a noun. Describes which noun belongs to whom.

"This is my book."

"That is her car."

"We finished our homework."

The noun (book, car, homework) always appears after the possessive adjective.

Possessive Pronoun (PP)

Stands ALONE. Replaces a noun that was already mentioned.

"The book is mine."

"That car is hers."

"Have you finished yours?"

No noun appears after the possessive pronoun — it replaces the noun completely.

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Lesson Objectives

Know all eight possessive adjectives and their correct subjects.
Know all eight possessive pronouns and use them independently.
Understand the key rule: possessive adjectives are followed by a noun; possessive pronouns are NOT.
Use WHOSE to ask about and identify ownership.
Avoid the it's / its and your / you're confusions.
Use apostrophe-s ('s) correctly for proper names and nouns.

Complete Possessive Table

All subjects — Possessive Adjective vs. Possessive Pronoun side by side

Subject Pronoun	Possessive Adjective (+ noun)	Possessive Pronoun (alone)	Example Pair
I	my	mine	"My pen is on the desk." / "This pen is mine."
You	your	yours	"Where is your* jacket?" / "This jacket is yours."*
He	his	his	"His* car is new." / "The new car is his."*
She	her	hers	"Her* phone is broken." / "The broken phone is hers."*
It	its	its*	"The dog ate its* food." / rarely used as a pronoun
We	our	ours	"Our* team won." / "The victory is ours."*
They	their	theirs	"Their* house is big." / "The big house is theirs."*

💡 "His" — The One That Does Not Change

Notice that for HE, the possessive adjective and the possessive pronoun are the same word: "his".

Context makes it clear: "his car" (adjective — followed by noun) vs. "The car is his." (pronoun — stands alone).

Possessive Adjectives — In Detail

My, your, his, her, its, our, their — always followed by a noun

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Key Rule — Possessive Adjectives

A possessive adjective always comes before a noun. It describes/modifies that noun — telling us who it belongs to. If there is no noun after it, it is wrong (or it has become a pronoun).

✅ "This is my bag." — noun (bag) follows immediately.

❌ "This bag is my." — no noun follows → WRONG. Must say: "This bag is mine."

Where is you bag?

Where is your bag?

Rule: Use "your" (possessive adjective) before a noun. "You" is a subject pronoun — it cannot show possession.

She forgot her's notebook.

She forgot her notebook.

Rule: Possessive adjectives (her, his, their, our) NEVER have an apostrophe. They stand alone before a noun. "Her's" does not exist.

The cat licked it's paw.

The cat licked its paw.

Rule: "Its" (possessive adjective) has NO apostrophe. "It's" = "it is." If you can replace it with "it is" and the sentence makes sense, use an apostrophe. If not, use "its."

Possessive Pronouns — In Detail

Mine, yours, his, hers, ours, theirs — stand alone, replacing the noun

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Key Rule — Possessive Pronouns

A possessive pronoun stands alone — no noun follows it. It replaces a noun + possessive adjective combination to avoid repetition. It answers the question: "Which one belongs to whom?"

✅ "Is this your book?" → "Yes, it is mine." (= my book — but we replaced "my book" with "mine")

❌ "Yes, it is mine book." → WRONG. Possessive pronouns never have a noun after them.

Replacing to Avoid Repetition

"My bag is black. Yours is red." (= your bag)

"Her car is old. His is new." (= his car)

"Our project is done. Is theirs done too?" (= their project)

Possessive pronouns prevent repetition — we do not need to repeat the noun.

After Verbs: to be, to belong

"That book is mine, not yours."

"This car belongs to them — it is theirs."

"The decision is ours to make."

After the verb "to be" (is/was) or "to belong to," possessive pronouns are the correct choice.

WHOSE — Asking About Ownership

The question word for possession — and how to answer it

📌 What Is WHOSE?

WHOSE is a question word used to ask about possession — "Who does this belong to?" It can also be used as a relative pronoun (to describe ownership in a sentence), but at this level, we focus on the question use.

Whose pen is this? → It is her pen. / It is hers.

Whose house is that? → It is their house. / It is theirs.

Whose bag is on the table? → It is my bag. / It is mine.

Whose turn is it? → It is mine! / It is your turn.

WHOSE Question	Short Answer (Pronoun)	Long Answer (Adjective + Noun)
Whose car is this?	It is mine.	It is my car.
Whose phone is that?	It is hers.	It is her phone.
Whose books are these?	They are his.	They are his books.
Whose idea was it?	It was ours.	It was our idea.
Whose luggage is this?	It is theirs.	It is their luggage.
Whose is this? (simple)	It is yours.	It is your item.

⚠️ WHOSE vs WHO'S — Do Not Confuse Them!

WHOSE = possession question word → "Whose bag is this?"

WHO'S = "Who is" or "Who has" (contraction) → "Who's coming to the party?" (= Who is coming?)

Test: Can you replace it with "who is"? → Use WHO'S. Is it asking about ownership? → Use WHOSE.

Apostrophe-S Possessives — Nouns and Names

A different type of possession — using 's with nouns and proper names

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How to Form Possessives with Nouns

For proper names (Carlos, Ana, London) and common nouns (the dog, the teacher), we show possession by adding 's (apostrophe-s) at the end.

This is completely different from possessive pronouns — here we are showing that a specific named person or thing owns something.

Singular Noun → add 's

Carlos's

"This is Carlos's book."
"That is the teacher's desk."
"I love Ana's cooking."

Plural Noun (regular) → add ' only

students'

"The students' projects are excellent."
"The teachers' meeting is at noon."
"The boys' room is upstairs."

Irregular Plural → add 's

children's

"The children's toys are everywhere."
"The women's section is on the second floor."
"The men's team won."

Never add 's to pronouns

her's / your's

These words do NOT exist.
✅ Say: "It is hers." / "It is yours."
❌ NEVER: "It is her's" or "It is your's"

Classic Confusions — its/it's and your/you're

The most common possessive errors in English

🔑 The Golden Rules for its/it's and your/you're

its (no apostrophe) = possessive adjective → "The dog ate its food." (belonging to it)

it's (with apostrophe) = "it is" or "it has" → "It's raining outside." (= It is raining)

your (no apostrophe) = possessive adjective → "Is this your bag?" (belonging to you)

you're (with apostrophe) = "you are" → "You're doing great!" (= You are doing great)

📌 TEST: Can you replace the word with "it is" / "you are"? → Use the apostrophe form. Cannot? → Use the possessive form (no apostrophe).

Common Mistakes to Avoid

The most frequent possessive errors — fully corrected

This bag is my.

This bag is mine.

Rule: After a verb ("is"), use a POSSESSIVE PRONOUN (mine), not a possessive adjective (my). "My" needs a noun after it.

That is hers car.

That is her car. / That car is hers.

Rule: Possessive pronouns (hers, mine, ours) NEVER have a noun after them. If a noun follows, use the possessive adjective (her, my, our).

It's tail was very long. (talking about a dog)

Its tail was very long.

Rule: "Its" (no apostrophe) is the possessive adjective. "It's" = "it is" — you cannot say "It is tail was very long."

Your very smart!

You're very smart!

Rule: "You're" = "you are." "Your" is a possessive adjective that needs a noun: "Your idea is smart."

Who's bag is this?

Whose bag is this?

Rule: "Whose" = question word for possession. "Who's" = "who is." Asking about a bag's owner → WHOSE.

The decision is our.

The decision is ours.

Rule: After "is/was," use a possessive PRONOUN (ours, mine, hers). "Our" is the possessive adjective — it needs a noun after it.

That is Ana's's book.

That is Ana's book.

Rule: Apostrophe-s ('s) is added ONCE to the name. Never double it. "Ana's" = Ana + 's → one apostrophe-s.

Their books are better than our's.

Their books are better than ours.

Rule: Possessive pronouns NEVER have an apostrophe. "Ours" — no apostrophe. Same for yours, theirs, hers, his, mine.

Audio Examples — Listen & Repeat

Possessive adjectives, possessive pronouns, and WHOSE in natural sentences

🟢 PA — with noun This is my coffee and that is her tea. my / her — both before nouns

🔵 PP — stands alone The red bag is mine. Is the blue one yours? mine / yours — no noun after

🟣 WHOSE Whose jacket is this? It is hers — Ana left it here. Whose question + hers answer

🟢 ITS The dog finished its meal and wagged its tail. its (no apostrophe) = possessive

🔵 PA vs PP Our team is good, but their team is better. However, the trophy is ours! our/their (PA before nouns) + ours (PP alone)

🟣 WHOSE vs WHO'S Whose book is this? And who's coming to pick it up? WHOSE = possession · WHO'S = who is

🟢 YOUR vs YOU'RE You're doing great! Your pronunciation has really improved. you're = you are · your = possessive adjective

🔵 After TO BE That idea was brilliant — and it was his, not hers. his / hers — possessive pronouns after verb to be

Reading Passage

Possessive Adjectives (green), Possessive Pronouns (blue), WHOSE (violet)

🟢 Possessive Adjective 🔵 Possessive Pronoun 🟣 WHOSE

The Lost Backpack at Manuel Antonio

Manuel Antonio National Park, Puntarenas, Costa Rica 🇨🇷

It was a sunny Saturday at Manuel Antonio National Park, one of the most beautiful beaches on the Pacific coast of Puntarenas. A group of university friends had arrived early to spend the day. They spread out on the sand and placed their bags and towels near a large palm tree.

Around midday, Sofia stood up and noticed a backpack lying on the sand near the water. She walked over and looked at it carefully. "Whose backpack is this?" she called out to the group. Nobody answered at first. She looked inside — there was a water bottle, sunscreen, and a small notebook. She checked the notebook: the name "Diego" was written on its cover.

"Is this your backpack, Diego?" she asked him. He looked up from his phone. "That is not mine," he said. "I have my backpack right here." He patted the black bag next to him. "But that blue one looks like it might be Camila's. She went to buy water — maybe it is hers."

When Camila came back, Sofia held up the backpack. "Whose is this?" she asked again. Camila shook her head. "It is not mine. My bag is the green one." She pointed to the backpack she was carrying. "Its zipper has a little lock on it — see?"

The friends looked around. The beach was crowded. A young couple was sitting nearby. Sofia walked over to them. "Excuse me, whose backpack is that?" she asked, pointing to the blue bag. The man looked surprised. "Oh! That is ours!" he said. "Our friend Diego left it here earlier." His partner jumped up. "Thank you so much! We were looking for it everywhere!"

Back with her friends, Sofia laughed. "It turns out theirs was here the whole time!" Marco, who had been watching quietly, added: "You know what is strange? Their friend has the same name as our Diego!" Everyone laughed. Diego waved his hand. "Well, the backpack was not mine — but it seems like it found its owner in the end!"

📖 Reading Comprehension Quiz

Answer the questions based on the reading passage above.

Grammar Practice Quiz

Test your knowledge of possessives and WHOSE — 20 questions

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