Identifying Appropriate Subject Pronouns
From the science curriculum
Identifying Appropriate Subject Pronouns
TL;DR
Subject pronouns replace nouns acting as the subject of a sentence, meaning they perform the action. They include words like "I," "he," "she," "we," and "they." Choosing the correct one depends on who or what is doing the action and whether it's singular or plural.
1. The Mental Model
Think of a subject pronoun as a stand-in for the "who" or "what" that's doing something in a sentence. It's like a shortcut so you don't have to keep repeating the same noun.
2. The Core Material
Subject pronouns are the actors in a sentence. They tell you who or what is performing the verb's action.
Common Subject Pronouns

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Here's a list of the main subject pronouns:
- I: Refers to yourself.
- You: Refers to the person you're speaking to (can be singular or plural).
- He: Refers to a single male person or animal.
- She: Refers to a single female person or animal.
- It: Refers to a single non-living thing, idea, or an animal of unknown gender.
- We: Refers to yourself and one or more other people.
- They: Refers to multiple people, animals, or things.
How to Choose the Right Subject Pronoun

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To pick the correct subject pronoun, you need to ask yourself two questions about the noun it's replacing:
- Who or what is performing the action? (This identifies the subject.)
- Is the subject singular or plural? (This helps narrow down the choices.)
- Is the subject male, female, or neither/unknown? (This further refines your choice for singular subjects.)
Here's a simple flow chart to help you decide:
graph TD
A["Identify the action verb (e.g., runs, sings, eats)"] --> B["Who or what is doing the action?"]
B --> C{Is the actor...};
C -- "Me?" --> D["'I'"];
C -- "You (singular/plural)?" --> E["'You'"];
C -- "Another singular male?" --> F["'He'"];
C -- "Another singular female?" --> G["'She'"];
C -- "Another singular thing/animal (unknown gender)?" --> H["'It'"];
C -- "Me + others?" --> I["'We'"];
C -- "Others (plural people/things)?" --> J["'They'"];
Examples:
- "The dog barked loudly." -> It barked loudly. (The dog is singular, non-human.)
- "Sarah loves to read." -> She loves to read. (Sarah is singular, female.)
- "Tom and I went to the park." -> We went to the park. (Tom and I are plural, includes "I".)
- "The students studied hard." -> They studied hard. (Students are plural.)
3. Worked Example
Let's say you have the sentence: "Mr. Harrison and Ms. Chen teach history."
- Identify the action: The action is "teach."
- Who or what is doing the action? "Mr. Harrison and Ms. Chen" are doing the teaching.
- Is the subject singular or plural? It's plural because there are two people.
- Which pronoun replaces plural people? "They" is the correct choice.
So, the sentence becomes: "They teach history."
4. Key Takeaways
- Subject pronouns always perform the action of the verb in a sentence.
- You use "I," "he," "she," "it," "we," "you," and "they" as subject pronouns.
- The choice of pronoun depends on whether the subject is singular or plural and its gender (for singular pronouns).
- Always ensure the pronoun agrees in number and person with the noun it replaces.
- Using subject pronouns makes your writing sound more natural and less repetitive.
Common Mistakes to Avoid

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- Confusing subject and object pronouns: Don't use "him" or "her" when the pronoun is the subject (e.g., "Him went to the store" is wrong; "He went to the store" is right).
- Incorrect agreement with "I": When "I" is part of a compound subject, make sure it's "He and I" not "He and me."
- Using "it" for people: Only use "it" for non-living things or animals of unknown gender; never for a person.
- Forgetting "you" can be plural: "You" serves for both one person and multiple people.
5. Now Try It
Read any paragraph from a book or article. Identify five sentences. For each of those five sentences, identify the subject noun, then rewrite the sentence using the most appropriate subject pronoun to replace that noun.
What success looks like: You'll have five new sentences where the subject pronoun correctly replaces the original subject noun, making the sentence grammatically sound and clear.
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