Who refers to someone performing the action of a verb (e.g. "They are the ones who sent me the gift"), and whom refers to someone receiving the action of a verb ("I'd like to thank the gift-givers, whom I've known for years"). In grammar terms, that makes who a subject, and whom an object.
Who is the subject of a sentence or clause (who is performing the action), whereas whom is the object of a verb or preposition (whom is affected by the action).
Use this they/them method to decide whether who or whom is correct.
If who/whom is an object (the one receiving the action), use whom. Let’s look at our first example: Think about who you want to cover and who is eligible for coverage.
Who or Whom? Get It Right Every Time with These 3 Tricks
Language evolves over time, and “whom” is quite rare in modern usage. If you say “Who should I talk to?” instead of “Whom should I talk to?”—most people won’t notice.
Who vs Whom: 4 Easy Ways to Get It Right Every Time
Do you know how to use "who" and "whom" correctly in a sentence? Learn how to determine their use in this article.
Who and whom are easy to confuse, but they are no different to he and him or they or them. 'Who' is the subject of a verb (like 'he'). 'Whom' is an object (like 'him'). Whom is never the subject of a verb.
‘Whom’ is a pronoun that is used to refer to the object of a verb or preposition. It is used when referring to a person who is receiving an action. In other words, ‘whom’ is used when asking about the person receiving the action. Examples: To whom did you give the book? Whom did you see at the party last night? From whom did you receive the email?