whose

IPA/huːz/

KK[hˈuz]IPA/huːz/

1.pronounA2

Definition

used alone (not followed by a noun) when you ask which person something belongs to or has a connection with.

Example

Whose is this jacket left on the back of the chair?

standalone pronoun (no noun after whose)

I found these keys on the kitchen counter — whose are they?

standalone pronoun in conversational question

Grammar Patterns

Whose + be + noun phrase?

Whose + auxiliary + noun + verb?

Usage Note

Frequently used in short questions where the noun is understood from context. Unlike determiner uses, no noun follows 'whose' directly.

Common Mistakes

Who's is this pen?

Whose is this pen?

'who's' means 'who is' or 'who has', not the possessive form.

1.determinerA2

Definition

used before a noun to ask who owns something or who has a connection with the person or thing you are talking about.

Example

Whose phone kept ringing during the meeting this morning?

interrogative determiner + noun (phone)

Rodrigo asked whose idea it was to start the book club.

embedded question with whose + noun (idea)

Grammar Patterns

Whose + noun + verb?

Usage Note

Unlike the standalone pronoun use, this sense is always followed immediately by a noun. The question can be direct or embedded.

Common Mistakes

Who's car is this?

Whose car is this?

'who's' is a contraction of 'who is' or 'who has'. Use 'whose' for possession.

2.determinerB1

Definition

used after a noun to introduce a defining relative clause that tells us which specific person or thing you mean, by showing that something belongs to or is connected with them.

Example

The woman whose cat climbed the tree called the fire brigade.

defining relative clause: whose + noun (cat) identifies which woman

Yael is the designer whose work won the national award last year.

Synonyms

of which
more formal; only for things and inanimate objects ('the building of which the roof…')

Grammar Patterns

noun + whose + noun + verb

Usage Note

This sense works for both people and things. Unlike 'which' or 'that', 'whose' is the only relative word that shows possession. The clause is essential to identify the noun (no commas).

Common Mistakes

the car which its owner sold it

the car whose owner sold it

'whose' replaces 'its' when connecting clauses about possession.

3.determinerB1

Definition

used between commas after a noun or name to add extra information about a person or thing that is already clearly identified, showing ownership or connection.

Example

Professor Tanvi Sharma, whose research focuses on ocean pollution, gave a fascinating lecture.

non-defining clause in commas after a proper name

The old oak tree, whose branches spread across the garden, was a hundred years old.

Synonyms

of which
only for things; more formal and less common in non-defining clauses

Grammar Patterns

noun/name, whose + noun + verb, ...

Usage Note

Distinguish from sense 2: this sense uses commas around the clause because the information is extra, not essential for identifying the noun. The clause can be removed without changing the core meaning. More common in written than spoken English.

Common Mistakes

My brother whose car is blue lives in Taipei' (no commas, unclear meaning)

My brother, whose car is blue, lives in Taipei.

commas indicate extra information. Without commas, it suggests you have more than one brother.

Word family

who
pronounA1
whom
pronounB1
whoever
pronounB2

Synonym discussion

Sense: determiner/2

All three connect clauses by showing possession, but they differ in what they refer to and how formal they sound. 'Whose' is the most common choice and works for both people ('the student whose essay won') and things ('the house whose roof collapsed'). 'Of which' is more formal and only used for objects ('the building of which the architect was proud'); it sounds stiff in everyday speech and rarely appears with people. 'Who … of' is a rare, very formal structure ('the man who the committee spoke of') that does not directly show possession — it relies on a separate prepositional phrase to express the relation. For natural spoken and written English, 'whose' is the standard choice for all possession-linking clauses.

whose ↗of whichwho ... of

Common collocations

Phrases

whose turn
whose idea
whose responsibility
whose fault

Etymology

Proto-Indo-EuropeanProto-GermanicOld EnglishEnglish

Comes from Old English 'hwæs', the possessive (genitive) form of 'hwā' (who). This word has been the possessive form of the question word for over a thousand years, related to similar words in German ('wessen') and Dutch ('wiens').

First known use

12th century

12th century, in the meaning defined above Pronoun

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whose

whose — pronoun

1. used alone (not followed by a noun) when you ask which person something belongs

Grammar Patterns

Usage Note

Common Mistakes

whose — determiner

1. used before a noun to ask who owns something or who has a connection with the pe

Grammar Patterns

Usage Note

Common Mistakes

2. used after a noun to introduce a defining relative clause that tells us which sp

Grammar Patterns

Usage Note

Common Mistakes

3. used between commas after a noun or name to add extra information about a person

Grammar Patterns

Usage Note

Common Mistakes

Word family

Synonym discussion

Common collocations

Phrases

Etymology

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