Who do (does) that?

Quick answer

Match the verb to the head noun. If the head noun is a single unit (group, team, committee), use a singular verb: "The group of students was late." If you mean the members as individuals, a plural verb reads naturally: "The group of students were arguing." In formal American prose, prefer singular; in British and informal usage, plural is common when emphasis falls on members. When unsure, rewrite so the subject is clearly singular or clearly plural.

Formal American: The group of students was selected.
British/informal or emphasis on members: The group of students were selected.
Safe rewrite: The students in the group were selected.

Core rule (short)

Find the head noun in phrases like "the group of students" - here the head noun is "group." By default the verb agrees with that head noun: group → singular verb. Use a plural verb only when you deliberately treat the group as a collection of individuals.

Head noun check: group, team, committee, class, family → match the verb to that noun by default.
Emphasis on members? Use plural: "The team were arguing."
Emphasis on the unit? Use singular: "The team was awarded a trophy."

Regional and style differences

Different varieties and genres prefer different choices. American formal writing (business reports, legal, academic) usually treats collectives as singular. British English, sports reporting, and conversational writing often use plural when members act separately or opinions split.

U.S. formal: The committee has made its decision.
British/informal: The committee have voiced their concerns.
Choose according to your audience and stay consistent within a document.

Real usage and tone

Pick singular when you want unity or a single outcome; pick plural when you want to highlight varied opinions or multiple actions.

Singular (unity): The jury was unanimous. - emphasizes one decision.
Plural (individuals): The jury were split in their views. - emphasizes members' differing opinions.
If meaning matters (e.g., whether a decision exists), choose the form that matches your intent.

Examples: wrong → right pairs

Below are common problem sentences with compact corrections. Some corrections show both a grammatical and a clearer rewrite option.

Wrong: The group of engineers were assigned the task.
Right: The group of engineers was assigned the task. - or - The engineers in the group were assigned the task.
Wrong: The number of applicants are increasing.
Right: The number of applicants is increasing.
Wrong: The team is celebrating their promotion.
Right: The team is celebrating its promotion. - or - Team members are celebrating their promotion.
Wrong: The committee were divided on the proposal.
Right: The committee was divided on the proposal. - or - Committee members were divided on the proposal.
Wrong: The board were arguing until late.
Right: The board was arguing until late. - or - Board members argued until late.
Wrong: The group of students was arguing among themselves.
Right: The group of students were arguing among themselves. - or - The students in the group were arguing.

Examples by context

Short, realistic pairs for workplace, school, and casual use. Each shows a common instinct and a clearer option.

Work

Wrong: The project team were behind schedule.
Right: The project team was behind schedule. - or - Team members were behind schedule.
Wrong: The audit committee were concerned about the figures.
Right: The audit committee was concerned about the figures.
Wrong: The task force were divided on recommendations.
Right: The task force was divided on its recommendations. - or - Task force members were divided.

School

Wrong: The class were unhappy with the schedule.
Right: The class was unhappy with the schedule. - or - Class members were unhappy with the schedule.
Wrong: The group of students was late to the lab.
Right: The group of students were late to the lab. - or - The students in the group were late to the lab.
Wrong: The committee were grading the exams.
Right: The committee was grading the exams. - or - Committee members graded the exams.

Casual

Wrong: My family are eating dinner now.
Right: My family is eating dinner now. - or - Family members are eating dinner now.
Wrong: The band was arguing about the setlist.
Right: The band were arguing about the setlist. - or - Band members were arguing about the setlist.
Wrong: The group of friends was planning a trip.
Right: The group of friends were planning a trip. - or - The friends were planning a trip.

Rewrite help: paste-ready rewrites

Use these patterns to make subject number explicit and remove doubt.

Make the subject plural: "The students in the group were..."
Name the members: "Group members/members of the committee..."
Use quantifiers: "Several students were..." or "A majority of the team was..." (be careful with phrases like "the number of").
Convert to passive or nominal form when appropriate: "The task was assigned to the group" (singular unit) vs "The task was assigned to the students" (individuals).

Rewrite examples:
"The group of applicants are waiting." → "The applicants are waiting."
"The board were divided." → "Board members were divided." or "The board was divided in its views."
"The committee have released their report." → "The committee has released its report." or "Committee members have released their report."

Memory tricks and quick checklist

Four fast checks when editing to decide was vs were.

Head-noun check: Identify the head noun and match the verb to it by default.
Emphasis check: If you mean members → plural; if you mean the unit → singular.
Audience check: Formal American → favor singular. British/sports/news → plural often acceptable.
Rewrite if unclear: Make the subject explicitly plural or singular.

10-second fix example: "The group of applicants are waiting." Step 1: head noun = group → singular. Step 2: do I mean applicants? Yes → rewrite: "The applicants are waiting."

Similar mistakes, hyphenation and spacing notes

Related constructions often cause the same confusion. Small punctuation or spacing changes can also improve clarity.

A number of vs the number of: "A number of students are..." (plural) vs "The number of students is..." (singular).
Majority: "The majority is" (as a bloc) vs "The majority are" (members).
Pronouns: Don't mix singular verbs with plural pronouns. Either use a singular pronoun ("its") or rewrite to plural ("members... their").
Hyphenation: None needed for "group of students."
Punctuation/spacing: Use commas to set off nonessential modifiers that help locate the head noun: "The group, made up of six students, was chosen."

FAQ

Is "The group of [plural noun]" ever incorrect?

No - the phrase itself is grammatical. The decision is which verb to use: singular if you treat the group as one unit, plural if you treat the members as individuals. Choose the form that matches your meaning and style.

How do I decide between "was" and "were" quickly?

Ask whether you're talking about the unit or the individuals. If the unit acts as one, use "was." If members act separately, "were" is usually better. When in doubt, rewrite so the subject is clearly plural or singular.

Which should I use in formal writing?

Formal American writing typically prefers singular verbs with collective nouns. If your audience expects formal usage, default to singular unless you're explicitly focusing on members.

Can I mix styles in the same document?

Try not to. Mixing singular and plural agreement for collectives can confuse readers and shift tone. Pick a consistent approach or use rewrites to avoid ambiguity.

Will grammar tools catch this every time?

Grammar tools often flag agreement issues and suggest rewrites, but they can miss nuance. Use them as a second opinion and confirm the choice matches your intended meaning.

Want a fast check for your sentence?

When speed matters, paste the full sentence into your editor or a grammar tool, identify the head noun, and use one of the quick rewrites above if the result feels ambiguous. Making the subject explicit removes doubt and keeps your tone consistent.