It certainly will not spell your doom If you can't decide when to use "whom." I always stay calm and never lose it When folks aren't sure about how to use it.
I will attempt--for the duration-- To avoid a grammatical explanation.° That will be hard--I must admit-- And if it gets too tricky, I'll quit.
"To whom it may concern" is easy (Although to some the phrase sounds cheesy.) Substitute "him"°° for "whom" and see That "whom" is correct; we DON'T say "to he."
"He is a person who I believe Will never, ever get a reprieve." "Whom" here wouldn't fit the bill Because the word "who" is the subject of "will."
"Whom did you see at the park today?" If "I saw him" is the answer, okay, Then "whom" is good, even though you And others might STILL prefer to use "who."
“For whom did you bake the bread?” I ask. “For him,” you answer. Easy task? So, in that sentence, “whom” toes the line. And if you make “for” the last word, fine.
“Who do you think deserves to win?” "Whom" would be a problem therein, For "who" must go with the verb "deserves." A little knowledge can calm your nerves.
But how about "Whom did you see at the gym?" If the answer is "I saw him," Then "whom" it is. But if you're confused, Know that "who" is more often used.
"The guy whom I saw at the meeting last week Spoke English, German, French, and Greek." "I saw HIM at the meeting…" Voilà! So "whom" works there. Got it? Hurrah!
Once you’ve got it, your next endeavor Will be practicing who- and whomever. It's up to you, but I'll say directly, If we use "whom," let's use it correctly.
-by Bob B (7-24-22)
°I could talk about subjective and objective pronouns, but I'll leave that for later. °°Of course, we could use "she/her" to test the pronouns, but "he/him" works well because of the final "m."