With Who vs. With Whom: Correct Usage and Examples

Navigating the nuances of English grammar can sometimes feel like deciphering a complex code, especially when it comes to prepositions and pronouns. Two such commonly confused pairs are “with who” and “with whom.” While they sound similar and serve a related purpose, their correct usage hinges on a fundamental grammatical principle: the difference between subjective and objective case pronouns.

Understanding this distinction is not merely an academic exercise; it’s key to communicating with clarity and precision. Whether you’re crafting an email, engaging in conversation, or writing a formal document, choosing the right pronoun ensures your message is both grammatically sound and easily understood. This guide aims to demystify the “with who” versus “with whom” dilemma, offering clear explanations and practical examples to solidify your grasp of this often-tricky grammar point.

Understanding Pronoun Cases: Who vs. Whom

The core of the “with who” versus “with whom” debate lies in the grammatical case of the pronoun. In English, pronouns change their form depending on their function within a sentence. The two primary cases relevant here are the subjective case, used when a pronoun acts as the subject of a verb, and the objective case, used when a pronoun acts as the object of a verb or a preposition.

The pronoun “who” is in the subjective case. It functions as the subject of a verb, performing the action. Conversely, “whom” is in the objective case. It functions as the object of a verb or, crucially for our discussion, the object of a preposition.

This fundamental difference dictates which pronoun is correct when used with a preposition like “with.” The preposition “with” requires its object to be in the objective case, making “whom” the grammatically correct choice in most formal contexts.

The Subjective Case: ‘Who’ as the Performer

When “who” appears in a sentence, it typically acts as the subject. This means “who” is the one doing the action described by the verb. Think of it as the performer of the action.

For instance, in the question “Who is coming to the party?”, “who” is the subject. The implied answer would be a noun or pronoun that performs the action of coming. The sentence structure is similar to “He is coming to the party,” where “He” is the subject.

The key is to identify if the pronoun is performing the action of the verb in its clause. If it is, “who” is the appropriate choice.

The Objective Case: ‘Whom’ as the Receiver

The pronoun “whom,” on the other hand, is always in the objective case. This means it receives the action of a verb or is the object of a preposition. It is the recipient, not the performer.

Consider the sentence, “To whom did you give the book?” Here, “whom” is the object of the preposition “to.” The action of giving is performed by “you,” and the book is the direct object. “Whom” is the indirect object, receiving the book.

If you can substitute “him” or “her” (objective case pronouns) for the pronoun in question, then “whom” is likely the correct choice. This substitution trick is invaluable for navigating these tricky constructions.

The Role of Prepositions

Prepositions are words that connect nouns, pronouns, and phrases to other words in a sentence, often indicating location, direction, time, or manner. Common prepositions include “to,” “for,” “with,” “from,” “about,” “on,” and “in.”

When a question or clause begins with a preposition followed by “who” or “whom,” the preposition dictates the case of the pronoun that should follow. Since prepositions govern the objective case, “whom” is almost always the correct choice after a preposition.

This rule is consistent and straightforward, yet it’s often overlooked in casual speech and writing, leading to the frequent misuse of “who” after prepositions.

‘With’ as a Preposition

The preposition “with” is used to indicate accompaniment, association, or the instrument by which something is done. When asking about the person someone is accompanied by or associated with, the preposition “with” sets up the need for an objective case pronoun.

Therefore, the grammatically correct construction is “with whom.” This phrase asks about the person who is the object of the preposition “with,” signifying companionship or association.

Ignoring this rule and using “with who” is a common error, particularly in informal settings, but it deviates from standard grammatical practice.

Applying the Substitution Trick

A highly effective method for determining whether to use “who” or “whom” is the substitution trick. If you can replace the pronoun with “he” or “she” (subjective case), then “who” is correct. If you can replace it with “him” or “her” (objective case), then “whom” is correct.

Let’s apply this to “with whom.” Consider the sentence: “You are going with _____?” To solve this, isolate the clause: “You are going with him.” Since “him” (objective) fits, the correct question is “With whom are you going?”

Conversely, if the sentence were “_____ is going to the meeting?”, and you could say “He is going to the meeting,” then “Who is going to the meeting?” would be correct.

When ‘Who’ Might Seem Correct After ‘With’

Despite the rule, there are instances where “with who” might sound natural or even appear correct in casual conversation. This often happens when the preposition “with” is separated from the pronoun “who” by other words, creating a slightly more complex sentence structure.

In such cases, speakers may mistakenly default to “who” because the immediate context doesn’t strongly signal the need for an objective pronoun. However, a careful grammatical analysis will still reveal that “whom” is the technically correct form.

Understanding these exceptions and the underlying grammatical principles is crucial for mastering this distinction.

The Role of Clause Structure

The placement of the preposition “with” relative to the pronoun “who/whom” significantly impacts how we perceive the correct usage. In simple structures, the rule is clear.

However, in more complex sentences, the preposition might appear at the beginning of the sentence or clause, while the pronoun is embedded deeper within. For example, “With whom do you want to go?” is correct.

If the sentence were structured differently, like “Who do you want to go with?”, the “with” is moved to the end. In this construction, “who” is often accepted in informal English because the preposition is detached from the pronoun, and the pronoun acts as the object of the verb “want” in a broader sense, though technically still linked to the preposition.

This flexibility in informal speech can be a source of confusion, but for formal writing, adhering to the preposition-pronoun rule is paramount.

Informal vs. Formal Usage

The distinction between “with who” and “with whom” is most pronounced in formal writing and speech. In academic papers, business correspondence, and formal presentations, using “with whom” is expected and demonstrates a strong command of grammar.

In casual conversations, text messages, or social media posts, the usage is often more relaxed. “With who” is frequently used and generally understood without causing significant miscommunication. However, it’s important to recognize that this is a concession to informality, not a grammatical correction.

For those aiming for precision and professionalism in their communication, mastering “with whom” is essential, regardless of conversational trends.

Practical Examples: ‘With Who’ vs. ‘With Whom’

To solidify your understanding, let’s examine several examples that illustrate the correct and incorrect usage of “with who” and “with whom.” These examples cover various contexts, from simple questions to more complex sentence structures.

Remember the substitution trick: if “he/she” fits, use “who”; if “him/her” fits, use “whom.”

Correct Usage of ‘With Whom’

Here are examples where “with whom” is grammatically correct:

• “With whom did you attend the conference?” (Substitution: You attended the conference with him. -> “him” fits, so “whom” is correct.)
• “The manager wants to speak with whom about the project?” (Substitution: The manager wants to speak with her. -> “her” fits, so “whom” is correct.)
• “She is the colleague with whom I collaborated on the report.” (Substitution: I collaborated on the report with him. -> “him” fits, so “whom” is correct.)
• “He asked with whom I shared my concerns.” (Substitution: I shared my concerns with her. -> “her” fits, so “whom” is correct.)
• “The decision was made by the committee, with whom we have consulted extensively.” (Substitution: We have consulted extensively with them. -> “them” fits, so “whom” is correct.)

In each of these examples, the pronoun is the object of the preposition “with.” The structure demands the objective case, making “whom” the appropriate choice.

Incorrect Usage of ‘With Who’

Now, let’s look at common errors where “with who” is used incorrectly:

• *Incorrect:* “With who did you go to the concert?” (Should be: “With whom did you go to the concert?”)
• *Incorrect:* “The person with who I spoke was very helpful.” (Should be: “The person with whom I spoke was very helpful.”)
• *Incorrect:* “Who are you going with?” (While common informally, formally it should be “Whom are you going with?” or “With whom are you going?”)
• *Incorrect:* “He is the friend with who she traveled.” (Should be: “He is the friend with whom she traveled.”)
• *Incorrect:* “With who is the package addressed?” (Should be: “With whom is the package addressed?”)

These examples highlight situations where the informal usage of “who” can creep in, even when “whom” is grammatically required. Recognizing these patterns helps in avoiding them.

Navigating Ambiguity and Informal Speech

While strict grammatical rules favor “with whom,” it’s undeniable that “with who” is prevalent in everyday language. This prevalence stems from several factors, including the natural tendency to simplify language and the waning distinction between subjective and objective pronouns in spoken English.

Understanding this informal usage is important for comprehension, but it doesn’t negate the need for correct usage in formal contexts. The goal is to be aware of both the rule and its common deviations.

The Case of the Preposition at the End

One of the most common reasons “who” appears after “with” is when the preposition is placed at the end of a sentence or clause. This is a stylistic choice that often makes sentences sound more natural and less formal.

For instance, “Who did you give the present to?” is a common way to ask “To whom did you give the present?” Similarly, “Who are you going with?” is a frequent substitute for “With whom are you going?” In these cases, the pronoun “who” is technically the object of the preposition, but its position at the end, combined with the informal acceptance of “who” for “whom,” makes it seem permissible.

However, in formal writing, it is still preferred to rephrase such sentences to place the preposition before the pronoun, thus necessitating “whom.”

When ‘Who’ Acts as the Subject of a Subordinate Clause

There are specific scenarios where “who” is indeed correct, even when preceded by a preposition that seems to imply “whom.” This occurs when “who” is the subject of a subordinate clause, rather than the object of the preposition itself.

Consider the sentence: “This is the man who I met with yesterday.” In this sentence, “who” is the subject of the subordinate clause “who I met with yesterday.” The subject of this clause is “who,” and “with” is a preposition that has been stranded at the end. The actual object of the preposition “with” is implied in the larger sentence context, but within the subordinate clause, “who” performs the action of meeting.

This is a more complex grammatical construction, and it’s where many people get confused. The key is to analyze the function of the pronoun within its immediate clause.

Mastering the Distinction for Clear Communication

Achieving mastery over the “with who” vs. “with whom” distinction requires consistent practice and a keen ear for grammatical structure. By internalizing the rules and applying the substitution trick, you can significantly enhance the clarity and professionalism of your written and spoken English.

Remember that language evolves, and informal usage often differs from formal standards. While casual settings may allow for more leniency, adhering to grammatical correctness in formal contexts is crucial for conveying credibility and precision.

Focus on understanding the underlying grammatical principles – the roles of subjects and objects, and how prepositions govern pronoun cases. This foundational knowledge will serve you well beyond just this specific pair of pronouns.

Practice and Application

The best way to internalize these rules is through active practice. Try constructing your own sentences and questions using both “who” and “whom,” and then test them using the substitution method. Pay attention to how native speakers use these pronouns in different contexts.

When reviewing your own writing, take a moment to identify instances where prepositions are followed by “who” or “whom.” Mentally (or even physically) rewrite the sentence to check if “he/him” or “she/her” fits. This deliberate effort will build your grammatical intuition.

Reading widely can also expose you to correct usage in context, helping you to naturally absorb the patterns of formal English.

When to Prioritize Formality

There are specific situations where prioritizing formal grammar is non-negotiable. These include academic essays, research papers, job applications, formal business emails, and official reports.

In these contexts, using “with whom” correctly demonstrates attention to detail and respect for linguistic conventions. It signals that you are a careful and precise communicator.

Even if you’re unsure, erring on the side of formality by using “whom” after a preposition is generally safer in professional or academic settings than using “who.”

Conclusion: Clarity Through Correctness

The difference between “with who” and “with whom” boils down to the grammatical case required by the preposition “with.” “Whom” is the objective case and is required after prepositions. While “who” is common in informal speech, especially when the preposition is detached, “whom” remains the standard for formal communication.

By understanding the roles of subject and object pronouns and applying simple testing methods, you can confidently navigate this common grammatical challenge. Striving for correctness in such details ultimately enhances the clarity and impact of your message.

Embrace the nuances of English grammar as a tool for precise expression. With practice and mindful application, you can ensure your communication is both effective and elegant, leaving a lasting positive impression.