What Are the Rules of Subject-Verb Agreement?
Introduction
Imagine reading a sentence like, “The group of students are excited about the field trip.” At first glance, this might seem correct, but it’s actually a classic example of a subject-verb agreement error. The subject here is “group,” which is singular, yet the verb “are” is plural. This mismatch creates confusion and undermines the clarity of the message. Subject-verb agreement is a foundational grammar rule that ensures sentences are both grammatically correct and easy to understand. In this article, we’ll explore the rules of subject-verb agreement, provide real-world examples, and address common mistakes to help you master this essential skill.
Understanding Subject-Verb Agreement
Subject-verb agreement refers to the grammatical rule that the subject and verb in a sentence must match in number (singular or plural). For example:
- Correct: “She runs every morning.”
- Incorrect: “She run every morning.”
The subject (“She”) is singular, so the verb (“runs”) must also be singular. This rule applies to all sentences, regardless of complexity. Let’s break down the key principles:
1. Simple Subjects and Verbs
The most basic rule: singular subjects take singular verbs, and plural subjects take plural verbs.
- Singular: “The cat sleeps on the couch.”
- Plural: “The cats sleep on the couch.”
Key Tip: Focus on the subject, not the object or other parts of the sentence.
2. Compound Subjects
When two or more subjects are joined by and, the verb should be plural.
- Correct: “The dog and the cat play together.”
- Incorrect: “The dog and the cat plays together.”
Exception: If the compound subject includes “or” or “nor,” the verb agrees with the subject closest to it.
- “Either the teacher or the students are responsible.” (Here, “students” is plural, so the verb is plural.)
3. Indefinite Pronouns
Indefinite pronouns like “everyone,” “someone,” or “nobody” are always singular, even if they refer to multiple people.
- Correct: “Everyone is invited to the party.”
- Incorrect: “Everyone are invited to the party.”
Common Mistake: Assuming “everyone” is plural because it refers to a group.
4. Collective Nouns
Collective nouns (e.g., “team,” “family,” “committee”) can be tricky. They are singular if the group acts as a single unit and plural if the individuals act separately.
- Singular: “The team wins the championship.”
- Plural: “The team are arguing among themselves.”
Pro Tip: Use context to determine whether the group is acting as a whole or as individuals.
5. Titles and Distances
Titles of books, movies, or organizations are treated as singular, even if they contain plural words.
- Correct: “Harry Potter and the Sorcerer’s Stone is a bestseller.”
- Incorrect: “Harry Potter and the Sorcerer’s Stone are a bestseller.”
Similarly, measurements like “five miles” or “ten years” are singular:
- “Five miles is a long distance.”
Step-by-Step Guide to Applying Subject-Verb Agreement
Step 1: Identify the Subject
Locate the main subject of the sentence. Ignore prepositional phrases, objects, or modifiers.
- Example: In “The group of students are excited,” the subject is “group,” not “students.”
Step 2: Determine the Number of the Subject
Is the subject singular or plural?
- “Group” is singular, so the verb should be “is.”
Step 3: Match the Verb to the Subject
Choose a verb that agrees in number.
- Correct: “The group is excited.”
Step 4: Watch for Exceptions
Check for compound subjects, indefinite pronouns, or collective nouns that might alter the verb’s number.
Real-World Examples of Subject-Verb Agreement
Example 1: Simple Agreement
- Correct: “The sun rises in the east.”
- Incorrect: “The sun rise in the east.”
Example 2: Compound Subjects
- Correct: “John and Mary are going to the store.”
- Incorrect: “John and Mary is going to the store.”
Example 3: Indefinite Pronouns
- Correct: “Somebody has left the door open.”
- Incorrect: “Somebody have left the door open.”
Example 4: Collective Nouns
- Correct: “The jury is deliberating.”
- Incorrect: “The jury are deliberating.”
Common Mistakes and How to Avoid Them
Mistake 1: Ignoring the True Subject
A prepositional phrase can confuse the subject.
- Incorrect: “The list of items are missing.”
Understanding subject-verb agreement is crucial for clear and professional writing. It ensures that your sentences flow naturally and are free of errors. By focusing on the subject’s number and context, you can enhance your grammatical precision.
When working with complex sentences, always revisit the core subject to confirm its form. For instance, in a sentence like “The team is working hard,” the verb “is” matches the singular subject. Similarly, in “Each student must submit their report,” the plural verb reinforces the collective responsibility.
Additionally, remember that collective nouns, while often treated as singular, can sometimes require attention. “The committee is discussing the proposal” might sound more natural than “the committee are discussing.”
Practice is key. Regular exercises and reading varied texts will help you internalize these rules. Over time, you’ll develop a more intuitive sense of when to adjust your verbs.
In conclusion, mastering subject-verb agreement strengthens your writing skills and boosts confidence in communication. Keep refining these techniques, and you’ll notice significant improvements in clarity and accuracy.
Conclusion: A sharp focus on subject-verb agreement not only elevates your writing but also ensures that your message resonates clearly with readers. By applying these principles consistently, you’ll become more adept at crafting polished and effective sentences.
Advanced Considerations: Inverted Sentences, Questions, and “There” Constructions
Subject‑verb agreement can become trickier when the usual subject‑verb order is altered. In questions, the verb often precedes the subject, yet the agreement rule remains unchanged.
- Correct: “Does the team have a new strategy?” (singular subject team → singular verb has in the auxiliary does). - Incorrect: “Do the team has a new strategy?”
When a sentence begins with there (or here), the true subject follows the verb. The verb must agree with that subject, not with the expletive.
- Correct: “There are several reasons for the delay.” (plural subject reasons → plural verb are).
- Incorrect: “There is several reasons for the delay.”
In sentences where the subject follows the verb for emphasis or literary effect—common in poetry or formal prose—the same agreement principle applies.
- Correct: “Beyond the hill lies the valley.” (singular valley → singular lies).
- Incorrect: “Beyond the hill lie the valley.”
Special Cases: Subjects Joined by or / nor
When subjects are connected by or or nor, the verb agrees with the subject closest to it.
- Correct: “Neither the players nor the coach is satisfied.” (closest subject coach → singular is).
- Incorrect: “Neither the players nor the coach are satisfied.”
If both elements are plural, the verb is plural; if both are singular, the verb is singular.
- Correct: “Either the managers or the directors are responsible.” (both plural → plural are).
- Correct: “Either the manager or the director is responsible.” (both singular → singular is).
Guidance for Non‑Native Speakers
Learners often struggle with agreement when collective nouns or indefinite pronouns appear in complex sentences. A practical strategy is to isolate the subject strip away modifiers and prepositional phrases, then decide on the verb form.
- Identify the core noun (e.g., in “The group of researchers has published,” the core is group).
- Determine its number (singular vs. plural). 3. Select the verb that matches that number, ignoring intervening words.
Practicing with sentence‑scrambling
