Who vs Whom: What's the Difference?

Understanding when to use “who” versus “whom” can be a source of confusion for many English speakers. These two words, though similar, serve different grammatical functions within a sentence. Clarifying their roles and learning how to distinguish between them can improve both written and spoken communication, making your sentences clearer and more professional.

What Are “Who” and “Whom”?

“Who” and “whom” are both pronouns derived from the same root but are used in different grammatical contexts. They are both related to questions and relative clauses, but their specific functions differ:

“Who” is a subject pronoun, used to refer to the person performing an action or being described.

“Whom” is an object pronoun, used to refer to the person receiving an action or being affected by it.

To put it simply, “who” is used when the pronoun is the subject of a verb, while “whom” is used when the pronoun is the object of a verb or preposition. Recognizing this distinction is key to choosing the correct word.

Key Factors to Distinguish “Who” from “Whom”

There are several practical steps and factors to help determine whether to use “who” or “whom”:

Identify the function of the pronoun in the sentence: Is it performing the action (subject) or receiving the action (object)?
Replace the pronoun with “he” or “him”: If “he” fits, use “who”; if “him” fits, use “whom”.
Consider the sentence structure: Is the pronoun part of a question, a relative clause, or a statement? This often influences the choice.

For example, in the question “Who is coming to the party?” — replacing “who” with “he” yields “He is coming to the party,” indicating “who” is correct because it is the subject. Conversely, in “To whom should I address the letter?” — replacing “whom” with “him” gives “I should address him,” confirming “whom” is appropriate as the object of the preposition.

Real-World Examples and Common Usage

Understanding the practical application of “who” and “whom” can be enhanced through concrete examples:

Subject position (use “who”): “Who called me last night?” — Here, “who” is the subject performing the action of calling.

Object position (use “whom”): “The person whom I met yesterday was very kind.” — In this case, “whom” is the object of the verb “met.”
Prepositional phrase (use “whom”): “The candidate to whom I spoke was very knowledgeable.” — “Whom” is the object of the preposition “to.”
Relative clause (use “who” or “whom”): “The artist who painted this mural is famous.” (subject) versus “The artist whom I admire is very talented.” (object)

> A common misconception is that “whom” is outdated or overly formal. While it’s true that in casual speech many people default to “who” regardless of grammatical correctness, understanding the distinction is important in formal writing and professional contexts.

Practical Takeaway for Choosing Between “Who” and “Whom”

The most straightforward method for deciding which pronoun to use involves a simple test:

Identify whether the pronoun is functioning as a subject or an object within the sentence.

If it’s a subject, use “who.”
If it’s an object, use “whom.”
For questions, try substituting “he” or “him”:
- “Who” corresponds with “he” (subject).
- “Whom” corresponds with “him” (object).

By practicing this substitution method and analyzing sentence structure, you can confidently determine the correct pronoun to use, enhancing your grammatical accuracy and clarity.

Who vs Whom: What’s the Difference?