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English Grammar · University Presentation

Subject‑Verb
Agreement

A foundational rule of English grammar — explored.

What it is Why it matters Core rules Finite vs. Non-Finite

Section 01 — Definition

What is Subject‑Verb Agreement?

core concept

Subject-verb agreement is the grammatical rule that states the subject and the verb in a sentence must match in number.

Simply put: if a subject is singular, its verb must also be singular. If a subject is plural, its verb must be plural. They have to "agree" with each other to make a sentence grammatically correct.

Basic Example

The dog barks.  →  singular

The dogs bark.  →  plural

Section 02 — Importance

Why Does It Matter?

three reasons
🔍

Clarity & Meaning

In complex sentences, proper agreement helps the reader identify exactly who is performing the action — preventing confusion before it starts.

🎓

Credibility & Professionalism

In academic and professional settings, correct grammar builds trust. Agreement errors distract the audience and make the speaker seem careless.

🎵

Natural Flow

Native speakers are subconsciously tuned to these rules. When agreement breaks, a sentence sounds "clunky" and interrupts communication.

Section 03 — Core Rules (Part 1 of 2)

Core Rules & Common Pitfalls

rules 1 – 3
Rule 01

The Basic Principle

A singular subject takes a singular verb (usually ending in 's'), and a plural subject takes a plural verb.

She runs fast.  /  They run fast.
Rule 02

Compound Subjects — The "And" Rule

When two subjects are connected by "and", they form a plural unit and need a plural verb.

The pen and the pencil are on the desk.
Rule 03

The "Or / Nor" Rule — Proximity

When subjects are joined by "or" or "nor", the verb agrees with the subject closest to it.

Either the manager or the employees are wrong.
Either the employees or the manager is wrong.

Section 03 — Core Rules (Part 2 of 2)

More Rules & Traps

rules 4 – 6
Rule 04

Indefinite Pronouns

Words like everyone, somebody, each, either, nobody sound plural but are grammatically strictly singular.

Everyone is happy to be here.
Rule 05

Collective Nouns

Nouns representing a group (team, family, committee) generally take singular verbs because the group acts as one unit.

The committee has decided.
Rule 06

Inverted Sentences

In sentences starting with "Here" or "There", the true subject hides after the verb.

There are four cookies left.  →  subject = cookies

Section 04 — Verb Types

Finite vs. Non-Finite Verbs

key distinction

Finite Verbs

The "Working" Verbs

Show tense and must agree with the subject in person and number. They are fully bound by subject-verb agreement rules.


She wants to learn.
They want to learn.

Non-Finite Verbs

Infinitives, Gerunds & Participles

Do not act as the main verb of a clause. They never change to agree with the subject — they are always neutral.


He tries to escape.
They try to escape.

Notice how tries / try (finite) changes with the subject, but to escape (non-finite) stays exactly the same. Agreement rules simply do not apply to non-finite verbs.

Subject-Verb Agreement · Summary

We covered…

Thank you.

Definition Why It Matters Basic Principle "And" Rule "Or / Nor" Rule Indefinite Pronouns Collective Nouns Inverted Sentences Finite Verbs Non-Finite Verbs

Questions?