Just a short post today, but on another thing people frequently misuse.
Who refers to the subject of a sentence.
Whom refers to the object of a verb or proposition.
If you can replace the word with he or she,
If you can replace the word with him or her,
Who would like to borrow a book?
(She would like to borrow a book.)
Who wants a piece of cake?
(He wants a piece of cake.)
Who made the potato salad?
(They made the potato salad.)
To whom was the parcel sent to?
(The parcel was sent to her.)
Whom does the dog belong to?
(The dog belongs to him.)