Who, Whom, Whose & Who's

Who, Whom, Whose & Who's
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  • 0:01 Sentence Structure
  • 1:34 Who as a Subject Pronoun
  • 3:20 Whom as an Object Pronoun
  • 4:18 Who vs. Whom
  • 6:34 Who's vs. Whose
  • 8:03 Lesson Summary
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Lesson Transcript
Instructor: Angela Janovsky

Angela has taught middle and high school English, Business English and Speech for nine years. She has a bachelor's degree in psychology and has earned her teaching license.

Many people misuse 'who', 'whom,' 'whose' and 'who's.' Watch this video lesson to not only learn the difference between these confusing words but also how to use each one correctly.

Sentence Structure

To get to the bottom of the confusing words 'who' and 'whom,' first we have to review basic sentence structure. All sentences are made up of subject and predicate. The subject is the main person or object doing the action. The predicate is the action and everything else that is not attached to the subject. If you can identify the verb, which shows action or state of being, then the predicate will be the verb and all that follows it. Let's look at an example to practice identifying subject and predicate.

Look at this sentence: 'The large dog chased the little girl.' What is the action? You should see the word 'chased' shows the action. 'Chased' is the verb. All the words following 'chased' is what constitutes the predicate. Now ask, 'Who is doing the action?' The dog is doing the chasing. Thus, the dog is the subject. You might be asking, 'What about the words before dog?' 'The' and 'large' are attached to the word 'dog,' and so are considered part of the subject.

So you might be wondering how will subjects and predicates help you decide when to use 'who' and 'whom?' Well, in order to understand the difference, you need to know how to identify the subject and predicate of a sentence. Now that we have reviewed that, let's look at those two words and when to use them.

Who as a Subject Pronoun

The key to knowing when to use 'who' and when to use 'whom' lies in how it is used in the sentence. 'Who' is a subject pronoun. Since you now know what a subject is, what do you think a subject pronoun is? You should know that a pronoun is a word that stands in for a noun, so a subject pronoun is a pronoun being used as the subject of the sentence.

Look at this sentence: 'Her went to the store.' What is wrong? You should have noticed that 'her' is being used improperly. It should be read, 'She went to the store.' This is because 'she' is the subject pronoun, and so needs to be the subject of the sentence. 'Her' is known as an object pronoun. For our purposes, think of an object pronoun as a pronoun being used somewhere in the predicate.

Now that you understand that 'who' is a subject pronoun, you need to remember to only use it when you need a subject for a sentence. 'Who' is usually used in questions, but don't let that confuse you. Questions have subjects and predicates like every other sentence. For example, look at this sentence: 'Who can define the term pronoun?' Can you identify the subject and the action? You should see that the action is 'can define.' Then you can determine that 'who' is the subject, since it is the doer of the action. Since this is a question, you don't know who is really defining the term. Instead, 'who' is the pronoun standing in for a subject of a sentence.

Whom as an Object Pronoun

Now you know that 'who' is a subject pronoun, let's look at 'whom.' 'Whom' is not a subject pronoun; instead, it is an object pronoun. Remember that an object pronoun is being used in the predicate of the sentence and not as the subject. Therefore, the word 'whom' cannot be the subject of your sentence.' That would be like using 'her' when you should use 'she.'

Look at this example: 'Katie can drive with whom to the store?' What is the action of this sentence? You should see 'can drive' is the action. Who is doing the action? 'Katie' is driving, and thus is the subject of the sentence. So 'whom' is the correct usage in this sentence, since it falls in the predicate and not the subject. For 'whom,' remember to identify the subject. If there is a clear subject, then use 'whom' as your pronoun as it falls in the predicate of the sentence.

Who vs. Whom

If you feel you may have trouble identifying subject and predicates in questions, there is another technique to determine when to use 'who' and 'whom.' Simply substitute either 'he' or 'him' in place where you want to use 'who' or 'whom.' If you can tell 'he' is the correct word, then it's a subject pronoun and should use 'who.' If you would use 'him,' then it is an object pronoun and you need to use 'whom.' If it helps, 'him' and 'whom' both end with the letter 'm.'

Let's use this technique with a few examples. Look at this sentence: 'Him went to the store.' Hopefully it is obvious that you should use 'he' instead of 'him.' So if you were making this into a question, you would use the subject pronoun 'who' to replace the word 'he.' It would become 'Who went to the store?' and not 'Whom went to the store?'

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