When should I use the word "who" and when should I use "whom?"?

Answer 1

"Who" is subject; use it in place of "I", "he", "she", or "they".

Object is "whom"; use it in place of "me", "him", "her", or "them".

Examples:
"Who is it, pounding on my door?"
"He is."

"To whom shall I give this letter?"
"Give it to him."

Answer 2

There are two things worth knowing about the use of the pronoun 'whom'. Firstly, in modern English usage it's considered rather formal and old-fashioned, although it does still sometimes appear in academic and official forms of writing. 'Who' is the modern equivalent that can be used either formally or informally and in spoken and written forms.

We are also more limited with the use of 'whom' grammatically, as it only appears as an object pronoun - so relating to or defining the object of the sentence, rather than the subject. For example, we might refer to the man to whom I spoke. In this case the man is the object, and I the subject. 'Whom' refers to 'the man', not me, and is preceded by the preposition 'to'. In modern everyday use, we'd be much more likely to say the man who I spoke to, with the preposition coming at the end of our sentence and creating a much more informal and colloquial effect.

'Who' is also flexible in that it can be both a subject or an object pronoun. So, the man who spoke to me or the man who I spoke to would both work. We can't do the same thing with 'whom' which is limited to defining our object.

Answer 3

Use who when you're using as the subject and whom when using it as the object

Answer 4

"who" is appropriate for just about anything now. Grammar experts are actually5 trying to get "whom" taken from the dictionary because of the confusion of it and it lack of use in modern times.

Answer 5

The easy way to remember: use "who" when you'd say "he," and "whom" when you'd say "him" (or "she" and "her," but it's easy to remember that "whom" and "him" both end in M.) That is, "who" is used when it's the subject of the sentence, and "whom" when it's the object.

So the following sentences show correct usage:

"Who likes a sailor, then?"

"You want me to give it to whom?"

"I'd like you to meet my friend, who is a producer."

"From whom will you get this money?"

"I don't know who let those damn dogs out."

"I don't care in whom you trust, as long as I get the cash."

Does that help?

Answer 6

"who" is the subject of a sentence: "Who asked that question?"
'whom' is the object: "To whom did you ask that question?"

Answer 7

who is the subjective form...whom is the objective form.