Master agreement rules for all subjects. Handle tricky cases like collective nouns, compound subjects, and inverted sentences.
~6 min read
Subject-verb agreement is one of the most fundamental rules in English grammar, yet it is also one of the most frequently broken. The principle is straightforward: a singular subject takes a singular verb, and a plural subject takes a plural verb. Mastering this rule requires understanding what counts as the "true" subject of a sentence and learning to ignore the words that try to mislead you.
Every sentence in English must have a subject and a verb that agree in number. "Number" simply means whether something is singular (one) or plural (more than one).
Notice how the singular verb publishes ends in -s, while the plural verb publish does not. This is the opposite of how nouns work: adding -s to a noun makes it plural (researcher becomes researchers), but adding -s to a present-tense verb makes it singular. This reversal confuses many writers, so keep it firmly in mind.
In the present tense, the distinction between singular and plural verbs appears only in the third person:
| Person | Singular | Plural |
|---|---|---|
| First | I write | We write |
| Second | You write | You write |
| Third | He/She/It writes | They write |
The third-person singular form adds -s or -es to the base verb:
In the past tense, most verbs have the same form for both singular and plural subjects, so agreement errors are less common:
The major exception is the verb be, which distinguishes was (singular) from were (plural) in the past tense.
The verb be has more forms than any other English verb, and agreement errors with be are extremely common:
| Tense | Singular | Plural |
|---|---|---|
| Present | I am / He is / She is / It is | We are / You are / They are |
| Past | I was / He was / She was / It was | We were / You were / They were |
Examples:
The verb have changes to has in the third-person singular present:
In the past tense, have becomes had for all subjects, so there is no agreement issue.
The most important skill for subject-verb agreement is identifying the true subject of the sentence. The true subject is the noun or pronoun that the verb directly relates to. Many sentences place words between the subject and the verb that can mislead you.
Consider this sentence:
The cost of raw materials has increased.
The true subject is cost (singular), not materials. The prepositional phrase of raw materials simply describes the cost. To find the true subject, mentally remove the prepositional phrase:
The cost
of raw materialshas increased.
Here are more examples:
Prepositional phrases are not the only structures that can appear between a subject and its verb. Several other constructions can create the same confusion:
Participial phrases:
Appositive phrases:
Relative clauses:
In each case, the verb must agree with the main subject, not with any noun inside the intervening phrase.
When you are uncertain about agreement, use this three-step method:
Example:
The effectiveness of these strategies _____ debatable.
The effectiveness of these strategies is debatable.
Another useful trick is the pronoun substitution test: replace the subject with he/she/it (singular) or they (plural). Whichever pronoun fits tells you which verb form to use.
~7 min read
Some subjects do not behave the way you might expect. Collective nouns, indefinite pronouns, and certain expressions create situations where the correct verb form is not immediately obvious. This section covers the most common tricky subjects and provides clear guidelines for each.
A collective noun names a group of people, animals, or things: team, committee, family, audience, staff, government, jury, class, crowd, public.
The key question is whether the group is acting as a single unit or as individual members.
As a unit (singular verb):
As individuals (plural verb):
Practical advice: In formal writing, especially in American English, treat collective nouns as singular unless the sentence sounds awkward or clearly refers to individual members. If the plural feels forced, restructure the sentence:
This avoids any ambiguity.
Some collective nouns are always treated a certain way:
Indefinite pronouns refer to non-specific people or things. They fall into three categories for agreement purposes.
These pronouns always take a singular verb, even when they seem to refer to multiple people or things:
each, every, everyone, everybody, everything, someone, somebody, something, anyone, anybody, anything, no one, nobody, nothing, either, neither
The most common mistake is treating everyone and everybody as plural because they refer to multiple people. Remember: grammatically, they are always singular.
These pronouns always take a plural verb:
both, few, many, several, others
These pronouns can be singular or plural depending on what they refer to:
some, any, all, most, none, more
The rule: look at the noun the pronoun refers to. If that noun is uncountable or singular, use a singular verb. If it is countable and plural, use a plural verb.
When each or every precedes a subject, the verb is always singular, even with compound subjects:
When each follows a plural subject, the verb stays plural:
Sentences beginning with there are inverted: the subject comes after the verb. You must look ahead to find the true subject:
A common mistake in informal speech is using there's (there is) with plural subjects: "There's three reasons..." This is incorrect in formal writing. Always check the noun that follows.
With compound subjects after there:
These two expressions behave differently:
The number of + plural noun → always singular (the number itself is the subject)
A number of + plural noun → always plural (equivalent to several or many)
This distinction trips up many writers. A helpful way to remember: the number = a specific quantity (singular), a number of = many (plural).
Certain subjects that look plural actually function as singular:
When referring to individual units rather than a single amount, use a plural verb:
~7 min read
Many agreement errors occur in sentences with compound subjects (two or more nouns joined by a conjunction) or in sentences with unusual word order. This section provides detailed examples for every major pattern you will encounter.
When subjects are joined by either...or or neither...nor, the verb agrees with the subject closer to it. This is called the proximity rule.
When both subjects are singular, the verb is singular:
When both subjects are plural, the verb is plural:
When one subject is singular and the other is plural, the verb matches the one nearest to it:
Style tip: When you have a mixed-number construction, place the plural subject closer to the verb so the sentence sounds more natural:
The proximity rule also applies when or is used alone:
Subjects joined by both...and are always plural, without exception:
Note that even when each individual subject is singular, both...and makes the compound subject plural.
The following phrases connect additional information to the subject but do not create a true compound subject:
as well as, together with, along with, in addition to, accompanied by, including, rather than, no less than
The verb agrees with the original subject only:
Why? These phrases function as parenthetical additions, not as coordinating conjunctions like and. Grammatically, they are closer to prepositional phrases. If you want a truly plural subject, rewrite using and:
| Sentence | Subject | Verb |
|---|---|---|
| The mayor, as well as the council members, is attending. | mayor (singular) | is |
| The mayor and the council members are attending. | mayor + council members (plural) | are |
| The report, together with the appendices, was filed. | report (singular) | was |
| The report and the appendices were filed. | report + appendices (plural) | were |
In standard English word order, the subject comes before the verb. In inverted sentences, the verb comes first, which makes it harder to identify the subject.
In questions, the auxiliary verb precedes the subject:
As discussed in the previous section, here and there are not subjects. The true subject follows the verb:
Sometimes writers invert the subject and verb for emphasis or style:
In formal writing, conditionals are sometimes inverted by dropping if:
In these constructions, the verb comes before the subject, but agreement still applies.
With not only...but also, the verb agrees with the subject after "but also" (the proximity rule again):
When the subject is a fraction, a percentage, or a portion, the verb agrees with the noun in the of phrase that follows:
When who, which, or that is the subject of a relative clause, the verb agrees with the antecedent (the noun the pronoun refers to):
Tricky case: "one of the...who/that"
The difference depends on whether the relative clause describes the group or a single member of the group.
~5 min read
This section consolidates all the rules from the previous sections into quick-reference tables and a cheat sheet for tricky cases. Use it when editing your writing or when you need a fast answer to an agreement question.
| # | Rule | Example |
|---|---|---|
| 1 | Singular subject → singular verb | The report is ready. |
| 2 | Plural subject → plural verb | The reports are ready. |
| 3 | Ignore prepositional phrases between subject and verb | The cost of materials has risen. |
| 4 | Ignore parenthetical phrases (as well as, together with, along with, including) | The CEO, along with the board, is attending. |
| 5 | Subjects joined by and → plural | The CEO and the CFO are attending. |
| 6 | Either/or, neither/nor → verb agrees with the nearer subject | Neither the teacher nor the students were ready. |
| 7 | Each, every, everyone, someone, nobody → singular | Each of the files has been reviewed. |
| 8 | Both, few, many, several → plural | Both are acceptable. |
| 9 | Some, all, most, none → depends on the noun referred to | Some of the water is / Some of the files are |
| 10 | Collective nouns → usually singular (as a unit) | The committee is meeting today. |
| 11 | There is/are → verb agrees with the subject that follows | There are several issues. |
| 12 | The number of → singular; a number of → plural | The number has grown. / A number have applied. |
| 13 | Titles, measurements, and amounts → singular | The New York Times publishes daily. / Five miles is a long run. |
| 14 | Fractions and percentages → agree with the noun in the of phrase | Half of the budget is spent. / Half of the items are sold. |
| 15 | Relative pronoun (who/that/which) → agrees with its antecedent | The students who are / The student who is |
| Always Singular | Always Plural | Singular OR Plural |
|---|---|---|
| each | both | some |
| every | few | any |
| everyone / everybody | many | all |
| someone / somebody | several | most |
| anyone / anybody | others | none |
| no one / nobody | more | |
| everything / something / anything / nothing | ||
| either / neither |
| Situation | Verb | Example |
|---|---|---|
| Group acts as one unit | Singular | The team is traveling together. |
| Members act individually | Plural | The team are wearing different jerseys. |
| Unsure? | Use singular in formal writing | The committee has decided. |
| Want to emphasize individuals? | Rewrite with members | The team members are wearing different jerseys. |
| What Follows? | Verb | Example |
|---|---|---|
| Singular noun | is / was | There is a problem. |
| Plural noun | are / were | There are problems. |
| Uncountable noun | is / was | There is no evidence. |
| Compound (first item singular) | is (formal) or are | There is a pen and two notebooks. |
| Compound (first item plural) | are / were | There are two notebooks and a pen. |
| Construction | Rule | Example |
|---|---|---|
| either A or B | Verb matches B | Either the dog or the cats are outside. |
| neither A nor B | Verb matches B | Neither the cats nor the dog is outside. |
| not only A but also B | Verb matches B | Not only the staff but also the manager was informed. |
| A or B | Verb matches B | The notebooks or the textbook is sufficient. |
| Incorrect | Correct | Why |
|---|---|---|
| The quality of the products are declining. | The quality of the products is declining. | Subject = quality (singular) |
| The list of requirements have changed. | The list of requirements has changed. | Subject = list (singular) |
| The purpose of these meetings are unclear. | The purpose of these meetings is unclear. | Subject = purpose (singular) |
| One of the servers are down. | One of the servers is down. | Subject = one (singular) |
| The stack of papers on both desks need filing. | The stack of papers on both desks needs filing. | Subject = stack (singular) |
| Incorrect | Correct |
|---|---|
| There is several problems with this plan. | There are several problems with this plan. |
| There is too many variables to consider. | There are too many variables to consider. |
| There has been many complaints. | There have been many complaints. |
| Incorrect | Correct |
|---|---|
| Everyone are expected to attend. | Everyone is expected to attend. |
| Each of the files have been reviewed. | Each of the files has been reviewed. |
| Neither of the options are ideal. | Neither of the options is ideal. |
| Nobody want to go first. | Nobody wants to go first. |
| Somebody need to take responsibility. | Somebody needs to take responsibility. |
| Incorrect | Correct |
|---|---|
| The manager and the team is ready. | The manager and the team are ready. |
| Neither the teacher nor the students has the answer. | Neither the teacher nor the students have the answer. |
| Both the proposal and the budget needs approval. | Both the proposal and the budget need approval. |
| Incorrect | Correct |
|---|---|
| The CEO, along with the board, are reviewing the budget. | The CEO, along with the board, is reviewing the budget. |
| The report, as well as the appendices, were submitted. | The report, as well as the appendices, was submitted. |
| The president, together with his advisors, have arrived. | The president, together with his advisors, has arrived. |
| Incorrect | Correct |
|---|---|
| The number of complaints have increased. | The number of complaints has increased. |
| A number of issues has been raised. | A number of issues have been raised. |
Use this checklist every time you revise a piece of writing:
When you encounter a tricky subject, ask yourself these questions in order:
Step 1: Is the subject joined by and?
Step 2: Is the subject joined by or, nor, either...or, or neither...nor?
Step 3: Is the subject an indefinite pronoun?
Step 4: Is there a phrase between the subject and the verb?
Step 5: Is the sentence inverted (there is/are, a question, emphasis inversion)?
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