Why ask Whose?
Whose is a question word that asks who a thing, idea or role belongs to. We use it when we see an object or hear about a situation but do not know whose object it is or whose turn it is to do something.
Whose focuses the question on possession or association: whose object, whose idea, whose turn. The answer can name a person, organisation or group, use a pronoun, or say that the owner is unknown.
Whose laptop is charging on the kitchen table?
Whose laptop is charging on the kitchen table?
Whose comes directly before the noun laptop and asks who owns it.
There's a scarf on the bench. Whose is it?
There's a scarf on the bench. Whose is it?
The noun was mentioned in the preceding sentence, so whose stands alone without repeating scarf.
Whose and who’s: the same pronunciation, different meanings
Whose and who’s are both pronounced /huːz/. Whose expresses possession, while who’s contracts who is or who has. Who’s got a car? can also concern possession, but it asks which person has a car, not who a particular car belongs to.
A simple check is to expand the word. If who is or who has fits without changing the intended meaning, use who’s. If the question asks who something belongs to, use whose.
Whose = possession or association ≠ Who’s = who is / who has
Who's texting you so late in the evening?
Who's texting you so late in the evening?
Who is texting fits here, so the correct word is who’s, not whose.
Whose umbrella did you borrow this morning?
Whose umbrella did you borrow this morning?
The question asks who owns the umbrella, so use whose, not who’s.
Who's already finished the report?
Who's already finished the report?
This expands to who has already finished, so use who’s.
Question form: Whose + noun + is / are + this / these
When asking about an object being indicated, a useful pattern begins with Whose + noun, followed by is or are before this, that, these or those: Whose bag is this? This is a question pattern with be.
Keep the noun, verb and demonstrative consistent in number: singular with is and this / that; plural with are and these / those.
Whose + noun + is / are + this / these / that / those?
- noun —
- A word naming a person, thing or idea: student, book, happiness.
Whose keys are these on the shelf?
Whose keys are these on the shelf?
Keys is plural, so are and these follow.
Whose phone is that, ringing in the bag?
Whose phone is that, ringing in the bag?
Phone is singular, so is and that follow.
Whose without a noun
If the object has already been named or is clear from the situation, you do not need to repeat its noun. Whose can stand alone immediately before the verb.
This is the same possessive question in a shorter form. Context, such as a previous sentence, gesture or visible object, makes the omitted noun clear.
I found a wallet by the door. Whose is it?
I found a wallet by the door. Whose is it?
Wallet has already been mentioned, so whose stands alone without repeating it.
These gloves were left on the bus. Whose are they?
These gloves were left on the bus. Whose are they?
Gloves appears in the first sentence, so the noun is not repeated in the question.
Verbs after whose: more than is and are
Whose can be used with other verbs. If the person doing the action is already named, form the question with the appropriate auxiliary: Whose bike did you borrow? You did the borrowing, while whose bike identifies the object whose owner is being asked about.
If Whose + noun is itself the subject, do not add a separate subject or do / does / did: Whose phone rang? In Whose idea has caused this?, whose idea is the subject and has caused is Present Perfect.
Whose bike did you borrow for the weekend?
Whose bike did you borrow for the weekend?
This past-action object question requires did. The main verb borrow stays in the base form.
Whose idea has caused all this confusion?
Whose idea has caused all this confusion?
Idea is the subject of the question itself, so the auxiliary has follows it directly. No additional do-question pattern is needed.
Answering with a possessive pronoun or a name
Two useful ways to answer are with a possessive pronoun, such as mine, yours, his, hers, ours or theirs, or with a name + ’s. A complete phrase is also possible: It’s my brother’s phone. If the owner is unknown, say I don’t know.
The answer form depends on what the listener already knows. Mine works when the speaker’s identity is clear; Marta’s explicitly names the owner.
Whose charger keeps beeping over there? — It's mine; I'll grab it now.
Whose charger keeps beeping over there? — It's mine; I'll grab it now.
The possessive pronoun mine stands for the complete phrase my charger.
Whose notebook is on the desk? — It's Marta's.
Whose notebook is on the desk? — It's Marta's.
A name with apostrophe + s, Marta’s, identifies the owner just as precisely as a pronoun.
Whose is not limited to objects
Whose asks about more than physical possession. It can also ask about roles, actions and responsibility: whose turn it is, whose idea something was, or whose mistake it was.
These constructions use the same pattern, Whose + noun + is / was. The noun simply names an abstract concept rather than an object: turn, idea, fault or responsibility.
Whose turn is it to answer the phone?
Whose turn is it to answer the phone?
Turn names a role in a sequence rather than an object, but the construction is the same.
Whose fault was it that the meeting started late?
Whose fault was it that the meeting started late?
Fault concerns responsibility. Whose asks which person is responsible.
Boundaries: other uses of whose
This rule covers whose as a question word at the beginning of a direct question. The same word can introduce a relative clause modifying a noun, as in the neighbour whose dog barks every night. That is a different construction with different sentence-building rules, and it is not practised here.
We do not review the full system of possessive pronouns, mine, yours, his, hers, ours and theirs, or the contrast between possessive determiners such as my / your and pronouns such as mine / yours. Neighbouring rules cover those topics. Here a pronoun is a ready-to-use answer form rather than the main learning target.
Whose bag is under the table?
Whose bag is under the table?
This is a direct question about possession, exactly the type practised in this lesson.
That's the man whose car got towed yesterday.
That's the man whose car got towed yesterday.
Here whose introduces a relative clause modifying man. That construction is outside this lesson.
Common mistakes
Incorrect:Who's bag is this on the table?
Correct:Whose bag is this on the table?
Who’s contracts who is or who has. It cannot replace possessive whose before bag.
Incorrect:Whose this umbrella is?
Correct:Whose umbrella is this?
After Whose + noun in this pattern, place be before the demonstrative this, not after it.
Incorrect:Whose these keys are?
Correct:Whose keys are these?
This direct question needs Whose keys + are + these. Keys is already plural, so retain are and these.
Incorrect:It's my.
Correct:It's mine.
The possessive determiner my needs a following noun. With no noun after it here, use the independent possessive pronoun mine.
Incorrect:It's Sarah is.
Correct:It's Sarah's.
To show possession with a name, use apostrophe + s, as in Sarah’s, not name + is. The similar sound of who’s does not justify that structure.
Incorrect:It's John phone.
Correct:It's John's phone.
The owner’s name needs ’s before the noun naming the object: John’s phone. Omitting the possessive marking produces an error.