B1Intermediate+50 XP available

Interactive Grammar: Complex Agreement Patterns

Handle subject-verb agreement in sentences with inverted order, relative clauses, and intervening phrases.

Grammar Explanation · Authentic Examples · Practice Exercises

Lesson progressNot started
Duration
~39 min
Exercises
26
Level
Intermediate

Overview

Handle subject-verb agreement in sentences with inverted order, relative clauses, and intervening phrases.

Inverted and There-Sentences

  • ThereThere are several issues. / There remains one concern.
  • HereHere is the document. / Here are the files.
  • InversionAfter only/rarely/never: agree with the true subject.
  • KeyFind the post-verb subject — that is what controls agreement.

The Number / A Number

  • The number of + plural noun → singular: The number of errors is high.
  • A number of + plural noun → plural: A number of errors have been found.
  • Intervening phrase: The cost of the repairs is significant. (head = cost)
  • Relative clause: She is one of those managers who understand people. (who = managers)

Common Mistakes

  • The number of students are → ✅ is (the number = singular)
  • A number of issues is → ✅ are (a number of = several)
  • There is several reasons → ✅ There are several reasons

When to use

Data reports

The number of applications received is higher than expected.

Academic prose

A number of studies have investigated this phenomenon.

Business

There remain several unresolved contractual issues.

Grammar tests

Complex agreement is a key feature tested at C1 and above.

Complex Agreement: Multiple Choice

Find the correct verb to agree with the true subject

Multiple Choice12 questions
1The number of applications risen sharply.
2A number of concerns been raised by stakeholders.
3There several unresolved issues from last quarter.
4There only one viable option left on the table.
5The cost of the repairs far exceeded the initial estimate.
6She is one of those professionals who deeply about process.
7'Here the documents you requested.'
8'Here the final report for your review.'
9The team of analysts who reviewed the data awarded.
10Not only the manager but also the staff concerned.
11Each of the three divisions reported a net loss.
12The findings, along with the supplementary data, inconclusive.

Fill in the Correct Verb Form

Identify the true subject and write the correct verb

Fill in the Blanks8 questions
1The number of defects(singular)fallen significantly this quarter.
2A number of staff members(plural)raised concerns about the new policy.
3There(post-verb subject)been three formal complaints this week.
4The quality of these submissions(head noun)improved markedly.
5Only after careful review(inversion)the board fully understand the risk.
6She is one of those leaders who(who = plural)consistently inspire their teams.
7Here(post-verb subj)the three reports you requested.
8The summary, together with the appendices,(head noun)available on the shared drive.

Fix the Complex Agreement Error

Correct the subject-verb agreement in each complex sentence

Error Fix6 questions

1The number of applicants are increasing every year.

2A number of issues has been raised in the consultation.

3There is three main reasons for this outcome.

4The team of specialists were awarded for its contribution.

5She is one of those analysts who always delivers on time.

6The report, along with the appendices, were submitted late.

Frequently Asked Questions

What does this lesson on subject-verb agreement cover?

Handle subject-verb agreement in sentences with inverted order, relative clauses, and intervening phrases.

Which CEFR level is this lesson designed for?

This lesson is designed for Intermediate (B1) learners and forms part of the Subject-Verb Agreement section on Grammartier.

What is the best approach for studying this grammar topic?

Start with the definition, then study the examples carefully to understand how the pattern works in context. Practise identifying the structure in authentic sentences before producing your own — this recognition-first approach builds a strong foundation for accurate, confident use.