Have you ever paused while writing an email and wondered, “Should I write to who or to whom?” 🤔 You’re definitely not alone. This is one of the most common English grammar questions, even among native speakers.
Many people avoid using whom because it sounds formal or confusing, while others use it incorrectly to sound more professional.
The good news? Once you understand one simple grammar rule, you’ll know exactly when to use to who and to whom with confidence.
Quick Answer: To Who or To Whom?
✅ “To whom” is usually correct because the preposition to requires an object pronoun, and whom is the object form of who.
Correct: To whom should I address this letter? ✔️
Incorrect: To who should I address this letter? ❌
However, in casual spoken English, many people say to who, even though it’s not grammatically standard.
What Does “Who” Mean?
Understanding “Who”
Who is a subject pronoun. It refers to the person performing the action in a sentence.
Think of who the same way you think of he, she, or they.
Examples
- Who is calling?
- Who wrote this article?
- Who wants pizza?
- Who won the game?
- Who sent this email?
- Who knows the answer?
- Who lives next door?
- Who made this cake?
- Who told you that?
- Who is responsible?
In every example above, who is doing the action.
What Does “Whom” Mean?
Understanding “Whom”
Whom is an object pronoun. It refers to the person receiving the action.
Think of whom like him, her, or them.
Examples
- Whom did you invite?
- Whom are you talking about?
- Whom did she choose?
- Whom should we contact?
- Whom did the manager hire?
- Whom did they recommend?
- Whom are you helping?
- Whom should I trust?
- Whom have you met?
- Whom did the teacher praise?
In these sentences, whom receives the action.
To Who or To Whom: Which Is Correct?
The Correct Answer
After the preposition to, English grammar traditionally requires whom.
Correct Examples
- To whom should I send the package?
- To whom does this phone belong?
- To whom was the award presented?
- To whom did you give the money?
- To whom should I complain?
- To whom is this email addressed?
- To whom may it concern.
- To whom do these documents belong?
- To whom was the invitation sent?
- To whom should I report this issue?
Incorrect Examples
❌ To who should I send the package?
To who does this belong?
To who did you speak?
Why Is “To Whom” Correct?
The Grammar Rule
The word to is a preposition.
After a preposition, English grammar uses an object pronoun.
Examples:
- to him
- to her
- to them
- to me
- to us
- to whom
Not:
- to he ❌
- to she ❌
- to they ❌
- to who ❌ (in formal grammar)
Easy Memory Trick 😊
Replace “Who” with “He”
This trick works almost every time.
Ask yourself:
Would you say:
- To he? ❌
- To him? ✔️
Since him is correct, use whom.
Example:
To whom did you send the invitation?
Replace:
To him did you send the invitation.
It works.
Therefore:
To whom ✔️
Comparison Table: To Who vs To Whom
| Phrase | Grammar | Usage | Example | Correct? |
| To who | Informal, non-standard | Casual speech | To who did you speak? | ❌ Usually incorrect |
| To whom | Standard English | Formal writing | To whom did you speak? | ✅ Correct |
Who vs Whom Comparison Table
| Word | Part of Speech | Function | Similar Pronoun | Example |
| Who | Subject pronoun | Performs the action | He, She, They | Who called you? |
| Whom | Object pronoun | Receives the action | Him, Her, Them | Whom did you call? |
When Should You Use “To Whom”?
Formal Emails
- To whom it may concern
- To whom should I send my resume?
- To whom can I direct this question?
Business Writing
- To whom should invoices be submitted?
- To whom do I report?
- To whom should complaints be addressed?
Academic Writing
- To whom is the research dedicated?
- To whom does this quotation belong?
Legal Documents
- To whom the agreement applies
- To whom payment is due
Official Letters
- To whom should this application be sent?
- To whom should I address this request?
When Is “To Who” Used?
Technically, to who is considered grammatically incorrect in standard English.
However, you’ll hear it often in:
- Casual conversations
- Movies 🎬
- TV shows
- Social media
- Text messages
- Informal interviews
Example:
To who are you talking?
Native speakers commonly say this.
In formal writing, it should be:
To whom are you talking?
Real-Life Examples
Formal:
✅ To whom should I send my CV?
Informal:
Who should I send my CV to?
Both are acceptable, but the second sounds more natural in modern English.
Workplace
- To whom do I report?
- Who is my manager?
School
- To whom should assignments be submitted?
- Who teaches this course?
News
- The committee announced to whom the award would be presented.
- Who won the election?
Social Media
People often write:
- To who?
- From who?
- With who?
Formal English prefers:
- To whom?
- From whom?
- With whom?
Modern English Usage
Today’s English has become much more conversational.
Many native speakers replace whom with who, especially in speech.
Examples:
Formal:
- To whom did you speak?
Modern:
- Who did you speak to?
The second sentence is extremely common and completely natural in conversation.
British vs American English
| Feature | British English | American English |
| Uses “whom” | More common in formal writing | Less common in speech |
| Casual conversation | Often replaced with “who” | Usually replaced with “who” |
| Business writing | Uses “whom” | Uses “whom” in formal contexts |
Both varieties recognize to whom as the grammatically correct form after a preposition.
Common Grammar Mistakes
Mistake 1
❌ To who should I complain?
✅ To whom should I complain?
Mistake 2
❌ To who did you give the book?
✅ To whom did you give the book?
Mistake 3
❌ To who does this belong?
✅ To whom does this belong?
Mistake 4
❌ I don’t know to who I should write.
✅ I don’t know to whom I should write.
Mistake 5
❌ From who did you hear this?
✅ From whom did you hear this?
Grammar Tips for Beginners ✨
- Who = subject.
- Whom = object.
- After to, for, with, from, by, and other prepositions, whom is traditionally correct.
- In everyday conversation, who is common.
- In formal writing, prefer whom.
Examples in Everyday English
Using “Who”
- Who called?
- Who wants coffee?
- Who wrote this?
- Who is outside?
- Who needs help?
“Whom”
- Whom did you invite?
- Whom should I trust?
- Whom are you helping?
- Whom did they elect?
- Whom did she marry?
“To Whom”
- To whom was the package delivered?
- To whom should I speak?
- To whom does this belong?
- To whom was the message sent?
- To whom can I submit my application?
Frequently Asked Questions (FAQs)
Is “to who” ever correct?
In standard English grammar, no. After the preposition to, the correct form is whom. However, many native speakers casually say to who in conversation.
Why do people rarely use “whom”?
Modern English has become more informal. Many speakers replace whom with who, especially in everyday speech.
Is “to whom it may concern” still correct?
Yes. It remains the standard opening for formal letters when you don’t know the recipient’s name.
How do I know whether to use who or whom?
Replace the word with he or him.
- If he works, use who.
- If him works, use whom.
Is “who did you talk to” wrong?
No. It is perfectly acceptable in modern conversational English.
In very formal writing:
To whom did you talk?
or
To whom did you speak?
Do native English speakers still use “whom”?
Yes, but mainly in formal writing, academic papers, legal documents, and business communication.
Is “whom” disappearing from English?
Not completely. While it is less common in everyday speech, it remains important in formal grammar and professional writing.
Conclusion
The debate over “to who or to whom” becomes much easier once you understand the role each word plays. Who is used as the subject of a sentence, while whom is the object. Because to is a preposition, to whom is the grammatically correct choice in formal English.
That said, language evolves, and you’ll often hear to who or even who…to in casual conversations. If you’re writing emails, academic papers, business documents, or official letters, stick with to whom to sound polished and professional. By remembering the simple he/him test, you’ll be able to choose the correct form every time.
James Carter is an English language enthusiast and content writer who loves making grammar simple and easy to understand. He creates clear, beginner-friendly guides on spelling, grammar rules, confusing words, and everyday English usage. His goal is to help readers write with confidence through practical examples, easy explanations, and accurate language tips.
