Do you know how to use the word "whom"? [I Hate Bad Grammar]

There are hints to remember which one to use, but I’ve forgotten. I’d rather use correct grammar because I’m old school, but these days I’m not sure younger people are even taught grammar in school, so maybe it doesn’t matter as much except in formal situations.

Yes.

I usually use it on paper at work. The thing is the language matters a lot at work so a person must have the command over what he has to save himself in a smart way.

I admit I don't know the difference between who,whom,who's and whose. There is a lot I don't know the difference between.

There are about fifteen songs listed on Wikipedia, starting with one by Bo Diddley, all correctly titled as:
"Whom do you love?"

whom is the objective case.

I always use whom because it's fancier. 🤔

For Who the Bell Tolls?🧐

No. That one always confused me.

To whom it may concern 😌