The use of "who" and "whom" made simple

The pronouns who and whom are frequently confused. Fortunately, there are easy ways to remember the appropriate uses of each. Who is the doer of the action or the subject of the sentence and whom is the receiver of the action or the object of the sentence.

Another way to check the correct use of whom is to substitute him or her in its place. If him or her makes sense then whom is the correct choice.

For example:

“John is the student whom I am working with.” I am working with him not I am working with he (he would not make sense) so whom is the correct choice.

To check the correct use of who in a sentence, try substituting he or she.

For example:

“Professor Elliot is the man who is teaching this class.” He is teaching this class not him is teaching this class (him would not make sense) so who is the correct choice in this sentence.