WHO or WHOM?

English for Today by Ganiu Abisoye Bamgbose (Dr GAB)

WHO or WHOM?

That’s the man ~whom~ came earlier (nonstandard).
That’s the man *who* came earlier (standard).

~Whom~ do you support (nonstandard)?
*Who* do you support (standard)?

The pronoun “who” is used every time the person involved is performing the action; someone came, someone supports.

I’ll like to know ~who~ you’ve met (nonstandard).
I’ll like to know *whom* you’ve met (standard).
Note: “Whom” should be used when the person involved is receiving the action: You’ve met *whom*? “Whom” receives the action of meeting.

For ~who~ are you doing all of these (nonstandard)?
For *whom* are you doing all of these (standard)?
I met a man with ~who~ I left the bag (nonstandard).
I met a man with *whom* I left the bag (standard).
Note too that “whom” should be used after prepositions such as “for” and “with”.
GAB