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Who vs. Whom: Know the Difference

Shumaila Saeed
By Shumaila Saeed || Updated on December 25, 2023
Who is used for subjects or subject complements; refers to people. Whom used for objects of verbs or prepositions; also refers to people.
Who vs. Whom

Key Differences

Who is used when referring to the subject of a sentence. It's about identifying or questioning the identity of a person or people involved in an action. For example, "Who is going to the store?" In contrast, 'Whom' is used when referring to the object of a verb or preposition. It is often used in formal or written English and in questions or clauses. Example: "To whom did you give the book?"
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Nov 17, 2023
'Who' can be replaced with pronouns like 'he' or 'she' in a sentence. If 'he' or 'she' fits, 'who' is typically the correct choice. Alternatively, 'Whom' aligns with 'him' or 'her'. If you can replace it with 'him' or 'her', 'whom' is likely correct. Example: "Whom did you see?" (You saw him/her).
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Nov 17, 2023
Who commonly used in spoken English due to its simplicity and directness. People often use 'who' even in situations where 'whom' might be grammatically correct, especially in casual conversation. The use of 'whom' can add a level of formality or sophistication to speech or writing, though it's becoming less common in everyday language.
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Shumaila Saeed
Nov 17, 2023
Who word is essential in forming questions about people's identities or roles. It's direct and engaging, prompting an answer about a person. 'Whom' is more likely to appear in written language, formal speeches, or structured interviews. It maintains a traditional grammatical structure.
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Comparison Chart

Usage

As subject or subject complement
As object of verb or preposition
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Substitutes

He/She
Him/Her
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Common in

Spoken English
Formal, written English
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Function in a Sentence

Identifying or questioning identity
Referring to the object of action
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Formality

Less formal
More formal
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Who and Whom Definitions

Who

Seeking Participation
Who is joining the game?
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Whom

Object of Action
Whom did you call last night?
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Who

Role Questioning
Who will lead the meeting today?
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Whom

Formal Inquiry
With whom were you speaking?
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Who

Inquiring Responsibility
Who took my phone?
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Whom

Recipient of Something
To whom should I address this letter?
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Who

Subject Identifier
Who wants ice cream?
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Whom

Investigating Involvement
By whom was this painting made?
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Who

Identity Inquiry
Who is the author of this book?
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Whom

Seeking Information
For whom is this package?
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Who

(interrogative) What person or people; which person or people; asks for the identity of someone; used in a direct or indirect question.
Who is that? (direct question)
I don't know who it is. (indirect question)
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Whom

(interrogative) What person or people; which person or people.
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Who

(relative) Introduces a relative clause having a human antecedent.
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Whom

As the object of a verb.
Whom did you ask?
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Who

With antecedent as subject.
That's the man who works at the newsagent. (defining)
My sister, who works in the accounts department, just got promoted to manager. (non-defining)
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Whom

As the object of a preposition.
To whom are you referring?
With whom were you talking?
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Who

(non-formal) With antecedent as object: whom.
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Whom

(relative) Used to refer to a previously mentioned person or people.
That is the woman whom I spoke to earlier. (defining)
Mr Smith, whom we all know well, will be giving the speech. (non-defining)
He's a person with whom I work. (defining)
We have ten employees, half of whom are carpenters. (non-defining)
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Who

Whoever, he who, they who.
Who insults my mother insults me.
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Whom

The person(s) whom; whomever.
To whom it may concern, all business of John Smith Ltd. has now been transferred to Floggitt & Runne.
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Who

A person under discussion; a question of which person.
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Whom

The objective case of who. See Who.
And every grass that groweth upon rootShe shall eke know, and whom it will do boot.
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Who

Whose
Who phone just rang?
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Who

One; any; one.
As who should say, it were a very dangerous matter if a man in any point should be found wiser than his forefathers were.
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Who

A United Nations agency to coordinate international health activities and to help governments improve health services
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Repeatedly Asked Queries

What's the basic use of 'Who'?

Refers to the subject in a question or statement.
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Is 'Whom' still commonly used?

Less so in casual speech, but still used in formal writing.
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Can 'Who' and 'Whom' be used interchangeably?

No, they have distinct grammatical roles.
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What is "Whom"?

"Whom" is a pronoun used for the object of a verb or preposition.
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How to decide between 'Who' and 'Whom'?

Substitute 'he/she' for 'who' and 'him/her' for 'whom'.
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When should I use "Whom"?

Use "whom" when it refers to the object receiving the action.
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Can "Who" and "Whom" be used interchangeably?

No, they have specific grammatical roles and are not interchangeable.
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Nov 17, 2023

What is "Who"?

"Who" is a pronoun used to refer to the subject of a verb.
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When should I use 'Whom'?

When referring to the object of a verb or preposition.
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When do I use "Who"?

Use "who" when it refers to the subject performing the action of the verb.
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Is "Whom" still commonly used?

"Whom" is less common in casual speech but still used in formal writing.
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Example of using "Whom"?

"To whom should I address this letter?" (Whom = object of the preposition "to").
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Is "Whom" used in questions only?

No, it can also be used in statements, particularly in formal contexts.
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Example of using "Who"?

"Who is going to the store?" (Who = subject going to the store).
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What happens if I use "Who" instead of "Whom"?

It's a common mistake and often accepted in casual speech, but incorrect in formal writing.
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Can I omit "Whom" in a sentence?

In informal speech, it's common to use "who" or omit "whom" entirely.
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Can "Who" and "Whom" refer to objects?

Generally, they refer to people, not inanimate objects.
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Are "Who" and "Whom" affected by number (singular/plural)?

No, they remain the same regardless of number.
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How do I decide between "Who" and "Whom"?

If you can replace it with "he" or "she," use "who." If "him" or "her" fits, use "whom."
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Is it ever correct to start a sentence with "Whom"?

Yes, in formal writing, particularly in questions.
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Shumaila Saeed
Written by
Shumaila Saeed
Shumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.

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