---

When referring to quantity, nouns appear in two forms:

• Singular nouns: Refer to one thing
  Examples: a flower / a dog / one apple
  
  
• Plural nouns: Refer to two or more things
  Examples: the flowers / two dogs / five apples

✏️ Jump to Practice Makes Perfect

---

---

• Singular & Plural Nouns in Use

  • The lion roared majestically.
  • The cat sat on the windowsill, plotting world domination.
    
    
  • It’s your turn to do the dishes!
  • All roads lead to Rome.
    
    
  • The children are playing hide-and-seek in the park.
  • Geese are not to be trifled with.

  ---

  * Singular Nouns / Regular Plural Nouns / Irregular Plural Nouns

Singular Nouns

Before we get into noun pluralisation rules, let’s look at some examples of singular nouns to go over their basic form.

– A book is on the table.

– A dog is barking outside.

– An apple a day keeps the doctor away.

– An idea can spark big changes.

– The door is painted red.

– 📝 Using Articles with Singular Nouns [Click]

Articles and Singular Nouns

Keep in mind that articles behave differently with singular and plural nouns; the examples and guidelines below refer specifically to singular nouns.

An article is a type of determiner that indicates whether a noun is general or specific.

For example:

• A book can refer to any book.
• The book points to a specific book that is already known.
  
  
• An umbrella suggests any umbrella.
• The umbrella refers to a particular, previously mentioned umbrella.
  
  

Guidelines:

• Use a before singular nouns that begin with a consonant sound.
  Example: a book / a dog
  
  
• Use an before singular nouns that begin with a vowel sound.
  Example: an umbrella / an elephant
  
  
• Use the when referring to a specific singular noun known to the listener or reader.
  Example: the door / the artist

Note: Singular nouns that do not typically have plural forms – often called uncountable nouns (e.g., advice / information / music) – do not take the indefinite articles a or an.

For these words, we use other determiners like some and any (e.g., we would not say an advice). For more details, check out our Countable & Uncountable Nouns page.

Plural Nouns – Regular

Plural nouns help us to discuss quantities beyond just one, whether it’s two, three, a hundred, or more. They come in two forms: regular and irregular.

Regular nouns are those that form their plural versions by following consistent, rule-governed patterns.

In most cases, you simply add -s or -es to the end of a singular noun to pluralise it.

For instance:

• Adding -s:
  [house > houses]
  Singular: The house is now up for sale.
  Plural: The two houses are now up for sale.
  
  
• Adding -es:
  [Fox > Foxes]
  Singular: The fox is hiding in the woods.
  Plural: The foxes are hiding in the woods.

In addition to adding -s or -es, there are several other rules for forming plural nouns in English. These rules depend on the specific endings of the singular noun, which determine how their plural forms are created.

Below, we will go over the rules of pluralisation for each type of singular noun ending, starting with -s and -es, which we have already touched upon.

1) Standard Pluralisation: Adding -s

Most singular nouns form their plural by simply adding -s to the end.

Singular Nouns	Plural Nouns
boat	boats
car	cars
road	roads
house	houses
table	tables
cup	cups
bottle	bottles
taxi	taxis

---

2) Pluralisation Rules for Nouns That Take -es in the Plural

To pluralise nouns ending in -s, -ss, -x, -z, -ch, or -sh > add -es.

Ending	Singular Nouns	Plural Nouns
-s	bus bonus	buses bonuses
-ss	glass dress	glasses dresses
-x	tax box	taxes boxes
-z	quiz buzz	quizzes* buzzes
-ch	watch beach	watches beaches
-sh	– dish – eyelash	– dishes – eyelashes

* Note: For certain nouns ending in -z (e.g., quiz), we double the final -z before adding –es.

---

3) Pluralisation Rules for Nouns Ending in -y

For nouns ending in –y, the rules for pluralisation depend on whether the second-to-last letter is a consonant or a vowel.

When the second-to-last letter is a consonant: replace –y with –ies to form the plural.

Second-to-Last Letter (Consonant)	Singular Nouns	Plural Nouns
t	city	cities
b	baby	babies
l	family	families
r	berry	berries
p	puppy	puppies

When the second-to-last letter is a vowel: we simply add–s to the noun to form the plural.

Second-to-Last Letter (Vowel)	Singular Nouns	Plural Nouns
e	key	keys
y	boy	boys
a	day	days
u	guy	guys

---

4) Pluralisation Rules for Nouns Ending in -f or -fe

To pluralise singular nouns ending in –f or –fe, we replace the ending with –ves.

Singular Nouns	Plural Nouns
knife	knives
wife	wives
elf	elves
calf	calves

---

Exceptions:

Some nouns ending in –f or –fe follow the standard pluralisation rule of simply adding –s.

Singular Nouns	Correct Plurals	Incorrect Plurals
roof	roofs ✅	rooves ❌
chef	chefs ✅	cheves ❌
belief	beliefs ✅	believes ❌
safe	safes ✅	*saves ❌

* Note: The noun safe forms its plural as safes following standard rules, while saves is a verb form of to save.

---

5) Pluralisation Rules for Singular Nouns Ending in –o

To pluralise singular nouns ending in –o, we add either –es or –s, depending on whether a vowel or a consonant precedes the –o.

We generally add –es when a consonant precedes –o.

Singular Nouns	Plural Nouns
potato	potatoes
mosquito	mosquitoes
hero	heroes
tomato	tomatoes

We generally add –s when a vowel precedes –o.

Singular Nouns	Plural Nouns
studio	studios
zoo	zoos
radio	radios
video	videos
kangaroo	kangaroos

---

Exceptions:

While most singular nouns ending in –o follow consistent pluralisation rules, there are exceptions that we just need to learn and memorise.

In these cases, even though a consonant precedes the –o, the noun forms its plural by adding –s instead of the expected –es.

Singular Nouns	Correct Plurals	Incorrect Plurals
photo	photos ✅	photoes ❌
piano	pianos ✅	pianoes ❌
memo	memos ✅	memoes ❌
logo	logos ✅	logoes ❌
kilo	kilos ✅	kiloes ❌
taco	tacos ✅	tacoes ❌

– 📝 Using Articles with Plural Nouns [Click]

Articles and Plural Nouns

Articles help us to clarify whether a noun is used in a general sense or to refer to specific items.

For example, the books points to a specific group of books, whereas books refer to the category of books in general.

Guidelines:

• We don’t use a or an with plural nouns.
  > It’s incorrect to say: a books or an apples.
  
  
• We use the to refer to specific plural nouns known to the listener.
  Example: The books you wanted are here.
  
  
• When referring to plural nouns in general, no article is needed.
  Example: Books inspire creativity.

Plural Nouns – Irregular

Irregular nouns don’t follow the standard pluralisation rules. Instead of simply adding -s or -es, these nouns change in different ways. Some shift internal vowel sounds (e.g., goose → geese), others transform completely (e.g., child → children), and a few stay the same (e.g., music → music).

This can be frustrating for English learners, but the good news is that many irregular plurals follow recognisable patterns. For example, nouns like goose → geese show a vowel shift pattern. Despite these patterns, irregular plurals are still tricky because there’s no single consistent rule.

The best way to master them is through practice and exposure. The more you encounter these words, the more natural they become.

1) Irregular Plural Nouns that Change Completely

Some irregular plural nouns change completely from their singular forms:

Singular Noun	Plural Noun
ox	oxen
criterion	criteria
child	children
appendix	appendices
focus	foci
person	people
die	dice
louse	lice
nucleus	nuclei
phenomenon	phenomena
bacterium	bacteria
index	indices
cactus	cacti

---

2) Irregular Plural Nouns & the Vowel Connection

Some nouns form their plural by changing the internal vowel sound:

Singular Noun	Plural Noun	Vowel Change
man	men	a → e
woman	women	o → e
foot	feet	oo → ee
tooth	teeth	oo → ee
goose	geese	oo → ee
mouse	mice	ou → i

---

3) Irregular Nouns That Stay the Same in Plural Form

Some singular nouns do not change in their plural forms.

One such example is sheep, which remains the same whether referring to one or many.

✅ – A sheep (single sheep) has escaped!
✅ – All of the sheep (multiple sheep) have escaped!
❌ – The sheeps have escaped!

---

Here are a few more examples of nouns that have identical singular and plural forms:

Singular	Plural
species	species
fish	fish
salmon	salmon

---

Subject-Verb Agreement

Subject-verb agreement is the rule that ensures a verb matches its subject in number and person. This rule applies across both regular and irregular nouns.

Put simply:

• Singular subjects require singular verbs.
• Plural subjects require plural verbs.

The subject can be either a noun (e.g., teacher / book) or a pronoun (e.g., he / she / they).

If a noun/pronoun is singular, it acts as a singular subject, so it must pair with a singular verb.

For example:

• Maria practises Spanish every day.
  (Singular subject Maria → singular verb practises)

If a noun is plural, it acts as a plural subject, so it must pair with a plural verb. For example:

• They practise Spanish every day.
  (Plural subject they → plural verb practise)

Here’s how singular and plural subjects affect the verb to practise:

The Verb To Practise – Present Simple Conjugation

Subject	Verb Form	Example Sentences
I (first person singular)	practise	– I practise Spanish every day.
You (second person singular or plural)	practise	– You practise Spanish every day.
He / She / Maria (third person singular)	practises	– He/She/Maria practises Spanish every day.
It (third person singular)	practises	– It practises its routine every morning.
We (first person plural)	practise	– We practise Spanish every day.
They (third person plural)	practise	– They practise Spanish every day.

Nouns don’t exist in isolation. Understanding singular and plural forms helps us use the correct verb forms in our sentences.

Common Mistakes in Subject-Verb Agreement

Irregular plural nouns already have their plural form, so we don’t add -s or -es.

✅ – The men work together seamlessly.
❌ – The mens work together seamlessly.

---

Irregular plural nouns do not follow the standard -es / -s patterns, yet they still require plural verb forms.

✅ – The mice are nibbling on the crumbs left on the counter.
❌ – The mice is nibbling on the crumbs left on the counter.

---

When two or more subjects are joined by and, they become plural and take a plural verb.

[Regular + Regular]
✅ – The cat and dog are playing in the garden.
❌ – The cat and dog is playing in the garden.

[Regular + Irregular]
✅ – The teacher and children are over there.
❌ – The teacher and children is over there.

[Irregular + Irregular]
✅ – The man and woman are dancing together.
❌ – The man and woman is dancing together.

---

When two or more subjects are joined by and but together form a single idea (a unified concept), the subject is treated as singular and takes a singular verb.

✅ – Macaroni and cheese is my favourite comfort food.
❌ – Macaroni and cheese are my favourite comfort food.

---

Singular nouns that have no plural form always take a singular verb when used alone. However, when two or more of these nouns are combined with and, they take a plural verb.

✅ – Good advice is hard to come by.
❌ – Good advice are hard to come by.

✅ – Good advice and information are hard to come by.
❌ – Good advice and information is hard to come by.

---

When a prepositional phrase (e.g., of flowers) comes between the subject and the verb, the verb form has to match the head noun.

[Singular head noun: bouquet >Singular verb form: looks]
✅ – The bouquet of flowers looks beautiful.
❌ – The bouquet of flowers look wonderful.

[Plural head noun: reporters > Plural verb form: are]
✅ – The reporters on the scene are trying to find out what happened.
❌ – The reporters on the scene is trying to find out what happened.

* Head nouns / Prepositional phrases / Verbs

Practice Makes Perfect: Singular & Plural Nouns

Put your knowledge of singular and plural nouns to the test here in our interactive practice section.

Exercise 1: Noun Identification

Determine whether each highlighted noun is singular or plural.

1. The lion roared majestically.
   
   
2. The children are playing hide-and-seek in the park.
   
   
3. A dog is barking outside.
   
   
4. Two books are on the table.
   
   
5. Geese are not to be trifled with.

Exercise 1: Answers [Click]

1. Singular (lion)
2. Plural (children)
3. Singular (A dog)
4. Plural (Two books)
5. Plural (Geese)

---

Exercise 2: Singular to Plural Transformations

Change each sentence from singular to plural.

1. A teacher needs good communication skills.
   
   
2. A bodybuilder follows a strict training routine.
   
   
3. The farmer harvests his sweetcorn crops.
   
   
4. The barista makes countless lattes every day.
   
   
5. A scientist conducts an experiment in the lab.

Exercise 2: Answers [Click]

1. Teachers need good communication skills.
2. Bodybuilders follow strict training routines.
3. The farmers harvest their sweetcorn crops.
4. Baristas make countless lattes every day.
5. Scientists conduct experiments in the lab.

---

Exercise 3: Correct the Errors

Correct the subject-verb agreement error in each sentence.

1. The children is playing outside.
   
   
2. There are a cat on the roof.
   
   
3. Geese flies south for the winter.
   
   
4. The dog run in the yard every morning.
   
   
5. A spider are on the table.
   
   
6. The teacher and children is over there.
   
   
7. The cat and dog is playing in the garden.
   
   
8. Good advice are hard to come by.
   
   
9. The bouquet of flowers look wonderful.
   
   
10. The mens work together seamlessly.

Exercise 3: Answers [Click]

1. The children are playing outside.
2. There is a cat on the roof.
3. Geese fly south for the winter.
4. The dog runs in the yard every morning.
5. A spider is on the table.
6. The teacher and children are over there.
7. The cat and dog are playing in the garden.
8. Good advice is hard to come by.
9. The bouquet of flowers looks wonderful.
10. The men work together seamlessly.

---

Exercise 4: Forming Plural Nouns

Change each singular noun to its plural form.

1. book
   
2. fox
   
3. puppy
   
4. child
   
5. goose
   
6. knife
   
7. tomato
   
8. radio
   
9. city
   
10. baby

Exercise 4: Answers [Click]

1. books
2. foxes
3. puppies
4. children
5. geese
6. knives
7. tomatoes
8. radios
9. cities
10. babies
    

---

Exercise 5: Singular and Plural Nouns in Context

Fill in the blanks using the words from the word bank below. Use the appropriate singular or plural form.

Word Bank: a) museum café | b) friend | c) museum | d) gift shop | e) city centre | f) artefact | g) pie | h) cup | i) gallery | j) painting | k) sandwich | l) visitor | m) souvenir

Last weekend, I visited the (1)__________ with my (2)__________. In the (3)__________, the area was bustling with (4)__________, and it took us a while to see everything. However, our patience paid off as we got to see all of the beautiful (5) __________ and (6)__________ adorning the halls. After we finished our tour of the museum, we went to the (7)__________ . I had a (8)__________ of tea and a (9)__________, and my friend had two (10)__________. Before we left to explore the (11)__________, we stopped by the (12)__________ and bought some (13)__________.

Exercise 5: Example Answers [Click]

1. c) museum
2. b) friend
3. i) gallery
4. l) visitors
5. j) paintings
6. f) artefacts
7. a) museum café
8. h) cup
9. k) sandwich
10. g) pies
11. e) city centre
12. d) gift shop
13. m) souvenirs

Full Text:
Last weekend, I visited the museum with my friend. In the gallery, the area was bustling with visitors, and it took us a while to see everything. However, our patience paid off as we got to see all of the beautiful paintings and artefacts adorning the halls. After we finished our tour of the museum, we went to the museum café. I had a cup of tea and a sandwich, and my friend had two pies. Before we left to explore the city centre, we stopped by the gift shop and took home many souvenirs.

---

---

• ShareCopied to clipboard

Next: Compound Nouns >