Introduction to Subject-Verb Agreement

In English grammar, subject-verb agreement means that the verb in a sentence must match its subject in both number (singular or plural) and person (first, second, or third). This agreement is essential because it helps the sentence sound correct and clear. Without proper agreement, sentences can become confusing or grammatically incorrect.

For example, consider these two sentences:

• The girl runs fast. (singular subject and singular verb)
• The girls run fast. (plural subject and plural verb)

Notice how the verb changes depending on whether the subject is singular or plural. This is the basic idea behind subject-verb agreement.

Understanding this rule is especially important for competitive exams, where questions often test your ability to spot errors or complete sentences correctly.

Basic Subject-Verb Agreement Rules

Let's start with the simplest rules about how subjects and verbs agree.

1. Singular and Plural Subjects

A singular subject refers to one person, place, thing, or idea. A plural subject refers to more than one.

The verb changes form depending on whether the subject is singular or plural:

2. Verb Forms for Different Persons

English verbs change depending on the person of the subject:

• First person: I, we
• Second person: you
• Third person: he, she, it, they

In the present tense, the verb usually adds an -s or -es ending only for the third person singular:

3. Agreement with Pronouns

Pronouns replace nouns and must agree with the verb in number and person. For example:

• He is a teacher. (third person singular)
• They are students. (third person plural)

Special Cases in Subject-Verb Agreement

Some subjects are tricky and don't follow the simple singular/plural rule. Let's explore these special cases.

graph TD    A[Identify Subject Type] --> B{Is the subject a collective noun?}    B -- Yes --> C{Is the group acting as one unit?}    C -- Yes --> D[Use singular verb]    C -- No --> E[Use plural verb]    B -- No --> F{Is the subject an indefinite pronoun?}    F -- Yes --> G{Is the pronoun singular or plural?}    G -- Singular --> D    G -- Plural --> E    F -- No --> H{Is the subject compound?}    H -- Joined by "and" --> E    H -- Joined by "or"/"nor" --> I[Verb agrees with nearest subject]

1. Collective Nouns

A collective noun names a group of people or things as a single unit, such as team, family, committee, audience. Whether the verb is singular or plural depends on whether the group acts as one unit or as individuals.

• The team wins the match. (team acts as one)
• The team are arguing among themselves. (team members acting individually)

2. Indefinite Pronouns

Indefinite pronouns like everyone, someone, each, nobody, none usually take singular verbs because they refer to individuals, not groups.

• Everyone is invited.
• None of the books is missing. (when 'none' means 'not one')

However, some indefinite pronouns like few, many, several are plural and take plural verbs.

3. Compound Subjects

When two or more subjects are joined by and, the verb is usually plural:

• Ravi and Sita are coming.

If joined by or or nor, the verb agrees with the subject closest to it:

• Either the teacher or the students are late.
• Neither the students nor the teacher is present.

Worked Examples