Many English speakers do not know the difference between who and whom. In some places, it hardly
matters, because using who when you should use whom is so common that it's not even considered much
of a mistake. But for those who want to know the difference between who andwhom, here is an
To put it simply, “who” is a subject and “whom” is an object. A classic mneumonic device to remember this, courtesy of Grammar Girl, is “I love you.” In this sentence, “I” is the subject – who is performing the action of the sentence. “I” am doing the loving. “You” are the object of my affection, as well as the object of the verb. ”You” are receiving the love. Therefore, I = who, you = whom.