Unraveling the mystery of “who” and “whom” hinges on mastering subject and object pronouns. Let’s delve into the details of these pronouns, examining how they function within sentences and providing examples to illustrate their proper usage.
Subject Pronouns
Subject pronouns take center stage in the sentence, acting as the doer of the action. The subject performs the action of the verb. Common subject pronouns include “I,” “you,” “he,” “she,” “it,” “we,” and “they.” For example:

“She runs every morning.”

“They are going to the concert.”
In these sentences, “she” and “they” are the subjects performing the actions of running and going, respectively.
Who as a Subject Pronoun
“Who” functions as a subject pronoun and refers to the person performing the action. It is often used in questions and relative clauses. For example:

“Who is calling?”

“The person who called you is my friend.”
In the first sentence, “who” is the subject performing the action of calling, and in the second sentence, “who” is the subject of the relative clause “who called you,” performing the action of calling.
Object Pronouns
Object pronouns take the backseat in a sentence, receiving the action of the verb. The object receives the action of the verb. Common object pronouns include “me,” “you,” “him,” “her,” “it,” “us,” and “them.” For example:

“The teacher called him.”

“She gave them a gift.”
In these sentences, “him” and “them” are the objects receiving the actions of being called and being given a gift, respectively.
Whom as an Object Pronoun
“Whom” functions as an object pronoun and refers to the person receiving the action. It is often used in questions and relative clauses. For example:

“Whom did you see?”
“The person whom you saw is my friend.”
In the first sentence, “whom” is the object receiving the action of seeing. In the second sentence, “whom” is the object of the relative clause “whom you saw,” receiving the action of seeing.
Identifying the Subject and Object
To determine whether to use “who” or “whom,” identify whether the pronoun is the subject or the object of the verb in the sentence. A simple trick is to replace the pronoun with “he/she” or “him/her.” If “he” or “she” fits, use “who.” If “him” or “her” fits, use “whom.” For example:

“Who/whom is coming to dinner?” (He is coming to dinner -> Who is coming to dinner?)
“Who/whom should I invite?” (I should invite him -> Whom should I invite?)
Mastering “who” and “whom” is your key to unlocking clear and confident communication! This guide equips you with the rules and examples to make these tricky pronouns a breeze. By understanding subject and object pronouns, you’ll be well on your way to becoming a grammar pro!