For whom vs To who
When to use each in English, with meaning, register, and examples.
For whom
FormalBeyond 10,000 (less common)
To who
Beyond 10,000 (less common)
Most formal: For whom
| For whom | To who | |
|---|---|---|
| Pronunciation | 🇬🇧 //fɔːr huːm//🇺🇸 //fɔr hum// | 🇬🇧 //tʊ huː//🇺🇸 //tu hu// |
| Meaning | Who is the action intended for? | A phrase used to ask about a person or people. |
| Example | This gift is for whom it may concern. | I asked to who I should send the invitation. |
| Register | Formal | Neutral |
| How common | Beyond 10,000 (less common) | Beyond 10,000 (less common) |
| Collocations | for whom it may concern, for whom are you waiting, for whom is this book | to who it may concern, to who does this belong, ask to who |
| Common mistakes | Incorrectly using 'who' instead of 'whom' when it's the object of a preposition., Confusing the phrase with 'for who', which is grammatically incorrect., Not using it in appropriate formal contexts. | 'To who' is often confused with 'to whom', especially in formal contexts., Some learners forget to use 'to' in the phrase., Misplaced word order in questions using 'to who'. |
| Usage notes | Used in formal or literary contexts to inquire about the beneficiary of an action. Less common in everyday conversation. | Use 'to who' when directly addressing someone. It's less formal. Use 'to whom' for formal writing or speeches. |
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Frequently asked questions: For whom vs To who
What's the difference between For whom and To who?
For whom: Who is the action intended for? To who: A phrase used to ask about a person or people.
Which is more formal: For whom and To who?
For whom is the most formal of these.
Can you show an example of each?
For whom: This gift is for whom it may concern. To who: I asked to who I should send the invitation.
Can I use For whom and To who interchangeably?
Not always. For whom and To who are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.