# Who vs Whom: Examples & How to Fix It

> Use who for the subject (the one doing the action) and whom for the object (the one receiving it). Quick test: if the answer is “he/she/they”, use who; if the answer is “him/her/them”, use whom.

**URL:** https://humanit.app/writing/who-vs-whom  ·  **Updated:** May 2026  ·  Humanit

Use who for the subject (the one doing the action) and whom for the object (the one receiving it). Quick test: if the answer is “he/she/they”, use who; if the answer is “him/her/them”, use whom. Paste your own sentence into the free checker below to fix it in one click.

## How it works

1. **Spot the pattern** — Rephrase as a statement and answer with a pronoun. “Who/whom did you call?” → “I called him” → him ends in “m”, so use whom.
2. **Apply the rule** — Match the m’s: if “him/them” answers the question, use whom; if “he/they” answers it, use who. After a preposition (“to ___”, “for ___”), it is almost always whom.
3. **Check your sentence** — Paste your text into the grammar checker below — it flags the issue and shows the correction.
4. **Re-read it** — Read the corrected version aloud to confirm it says exactly what you meant.

## The rule

Who is a subject pronoun (like he, she, they); whom is an object pronoun (like him, her, them). The role the word plays in the sentence decides which to use.

## How to spot it

Rephrase as a statement and answer with a pronoun. “Who/whom did you call?” → “I called him” → him ends in “m”, so use whom.

## How to fix it

Match the m’s: if “him/them” answers the question, use whom; if “he/they” answers it, use who. After a preposition (“to ___”, “for ___”), it is almost always whom.

## The most common mistake

Using “whom” everywhere to sound formal, even where it’s the subject — “Whom is calling?” should be “Who is calling?” If you’re not sure whether your sentence has the problem, paste it into the checker above — it catches this and explains the fix in plain language.

**Before → after**

| ❌ Incorrect | ✓ Corrected | Why |
| --- | --- | --- |
| Whom is at the door? | Who is at the door? | Subject = who (she is) |
| Who should I ask? | Whom should I ask? | Object = whom (ask him) |
| To who should I address this? | To whom should I address this? | After a preposition = whom |

## FAQ

**Who vs whom — how do I choose?**

Answer with he/him: if “he” fits, use who; if “him” fits, use whom (both end in “m”). “Who called?” (he called); “Whom did you call?” (called him).

**Is “whom” becoming outdated?**

In casual speech many people use “who” throughout. In formal and academic writing the who/whom distinction still matters, especially after prepositions (“to whom”).

**How do I check my own writing for this?**

Paste your text into the free grammar checker on this page. It flags the issue, suggests a correction, and explains why — so you learn the rule, not just the fix.

**Is it free?**

Yes — your first run needs no account, and a free account adds 5 more, each up to 1,500 words. They are a one-time grant, not a daily allowance. Upgrade for a word pool that removes the per-run cap, or use the free iOS app.

## Related pages

- [Parallel Structure](https://humanit.app/writing/parallel-structure) ([markdown](https://humanit.app/writing/parallel-structure.md))
- [Reduce Wordiness](https://humanit.app/writing/reduce-wordiness) ([markdown](https://humanit.app/writing/reduce-wordiness.md))
- [Formal vs Informal Sentences](https://humanit.app/writing/formal-vs-informal) ([markdown](https://humanit.app/writing/formal-vs-informal.md))
- [Comma Splices](https://humanit.app/writing/comma-splice) ([markdown](https://humanit.app/writing/comma-splice.md))
- [AI Humanizer](https://humanit.app/humanize) — Rewrite AI text to read human. ([markdown](https://humanit.app/humanize.md))
- [AI Detector](https://humanit.app/detect) — Check if text reads as AI-written. ([markdown](https://humanit.app/detect.md))

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_Last updated: June 2026._