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English Grammar Guide

Subject-Verb Agreement

B1 Subject-Verb Agreement

Section titled “ Subject-Verb Agreement”

In English, the verb has to match the subject. He walks. They walk. One tiny -s marks singular third person. Mandarin? 他喜欢 (tā xǐhuān) and 他们喜欢 (tāmen xǐhuān) — same verb, zero change. Your brain learned “verb = verb” and English said “actually, add -s for he/she/it.”

Before this, know:
Present SimpleNouns & Pronouns

The basic rule: one subject, one matching verb

Section titled “The basic rule: one subject, one matching verb”
Subject Verb (present simple)
I / you / we / they walk
he / she / it walks
The cat (it) walks
The cats (they) walk

She works at a bank.

Article Noun Verb Adjective Preposition

They work at a bank.

Article Noun Verb Adjective Preposition

The -s is English’s way of tagging “one person/thing, not me, not you.” It’s not optional. It’s not decoration. Native speakers hear its absence like a wrong note in a song.

Third-person singular -s: spelling rules

Section titled “Third-person singular -s: spelling rules”
Base verb Rule Example
Most verbs add -s walk → walks, play → plays
Ends in -s, -ss, -sh, -ch, -x, -z, -o add -es watch → watches, go → goes
Ends in consonant + y y → ies study → studies, try → tries
Ends in vowel + y add -s play → plays, enjoy → enjoys
have irregular → has she has
be irregular → is he is
do irregular → does it does
He watch TV every night.
He watches TV every night.
Third person singular → add -es after -ch.
She study English.
She studies English.
Consonant + y → change to -ies.
The dog have a bone.
The dog has a bone.
Have → has for third person singular.

Indefinite pronouns: everyone looks plural, acts singular

Section titled “Indefinite pronouns: everyone looks plural, acts singular”

These words feel like crowds but are grammatically singular:

Singular (verb + -s) Example
everyone, everybody Everyone is here.
someone, somebody Someone has your keys.
anyone, anybody Anyone knows that.
no one, nobody Nobody likes cold coffee.
everything Everything is fine.
something Something smells weird.
each, either, neither Each student has a book.

Compound subjects: and vs. or

Section titled “Compound subjects: and vs. or”

And = plural (usually)

Section titled “And = plural (usually)”

Two subjects joined by and → plural verb:

Tom and Jerry are enemies.

Article Noun Verb Adjective Preposition

Coffee and tea are popular drinks.

Exception: Two things that form one unit → singular:

Peanut butter and jelly is my favorite sandwich. Research and development is important.

Or / nor / either…or / neither…nor = agree with the closest subject

Section titled “Or / nor / either…or / neither…nor = agree with the closest subject”

Neither the teacher nor the students are happy.

Article Noun Verb Adjective Preposition

Neither the students nor the teacher is happy.

Article Noun Verb Adjective Preposition

The verb follows the nearest subject. Students (plural) → are. Teacher (singular) → is.

Either Tom or his brothers is coming.
Either Tom or his brothers are coming.
Nearest subject = brothers (plural) → are.

There is / there are: the subject is hiding

Section titled “There is / there are: the subject is hiding”

There is/are is inverted. The real subject comes after the verb:

Real subject Verb
a book (singular) There is a book
three books (plural) There are three books
a cat and a dog There are a cat and a dog
There is many problems.
There are many problems.
Subject = problems (plural) → are.
There are a student waiting.
There is a student waiting.
Subject = a student (singular) → is.

Trick: Ignore “there.” Find the first noun after is/are. That’s your subject.

Tricky cases: along with, as well as, together with

Section titled “Tricky cases: along with, as well as, together with”

These phrases don’t create compound subjects. The verb agrees with the main subject only:

The president, along with his advisors, is arriving tomorrow.

Article Noun Verb Adjective Preposition

→ Subject = president (singular) → is. Not “advisors are.”

True compound vs. added info
Compound subject (and) → plural

The president and his advisors are arriving.

→ Both are subjects. Plural → are.

Main subject + extra info → singular

The president, along with his advisors, is arriving.

→ Only president is the subject. “Along with advisors” = parenthetical. Singular → is.

Same rule for: as well as, together with, in addition to, including

The manager, as well as the employees, are responsible.
The manager, as well as the employees, is responsible.
Main subject = manager (singular) → is.

Collective nouns: team, family, government

Section titled “Collective nouns: team, family, government”

Collective nouns (group = one unit) often take singular verbs in American English:

The team is winning. My family lives in Shanghai. The government has announced new rules.

British English sometimes uses plural: “The team are winning.” Pick one flavor and stay consistent.

Agreement decision flowchart

Section titled “Agreement decision flowchart”

When you’re unsure, run this:

flowchart TD
    START["🔍 Find the subject"] --> THERE{"Starts with there is/are?"}
    THERE -->|Yes| AFTER["Subject = noun AFTER is/are"]
    THERE -->|No| COMPOUND{"Compound subject?"}


    COMPOUND -->|A and B| AND["Usually PLURAL<br/>(unless one unit)"]
    COMPOUND -->|or / nor / either/neither| NEAR["Verb matches NEAREST subject"]
    COMPOUND -->|along with / as well as| MAIN["Verb matches MAIN subject only"]


    AFTER --> NUMBER
    AND --> NUMBER
    NEAR --> NUMBER
    MAIN --> NUMBER


    NUMBER{"Singular or plural?"}
    NUMBER -->|Singular / everyone / nobody / each| SING["Singular verb<br/>is, has, walks, -s"]
    NUMBER -->|Plural| PLUR["Plural verb<br/>are, have, walk, no -s"]

More practice: fix the agreement

Section titled “More practice: fix the agreement”
The news are good.
The news is good.
News looks plural but is uncountable singular → is.
Mathematics are hard.
Mathematics is hard.
Subject names ending in -s (mathematics, physics, economics) are usually singular.
One of my friends live in Tokyo.
One of my friends lives in Tokyo.
Subject = one (singular), not friends → lives.
The number of students are increasing.
The number of students is increasing.
Subject = the number (singular). (A number of students are... = plural.)
She don't like coffee.
She doesn't like coffee.
Third person singular negative → doesn't, not don't.

Distance, time, money: singular as a unit

Section titled “Distance, time, money: singular as a unit”

Amounts and measurements = one unit → singular verb:

Ten kilometers is a long walk. Five dollars is enough. Three hours seems like forever.

Subject-Verb Agreement — cheat sheet

Default present simple: he/she/it + verb-s · I/you/we/they + base verb

Indefinite pronouns (singular): everyone / nobody / each / either + singular verb

Compound: A and B → plural · A or B → matches nearest

There is/are: There is/are + real subject ← verb agrees with this

Extra phrases (ignore for agreement): along with · as well as · together with · in addition to

Irregular: have → has · be → is · do → does

Try this right now

Section titled “Try this right now”

Write five sentences about people you know. Use he/she + verb at least twice. Read them aloud and exaggerate the -s: “She workssss in finance.” Feel ridiculous. That’s how the muscle gets built.

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