Articles: A, An, and Plural Nouns
Hook
Look around you: a chair, a window, an apple, two books. In English, almost every singular thing you can count needs a small word in front of it: a or an. And when there is more than one, the word usually changes at the end. Get these two small things right and your English immediately sounds more natural.
Notice
- I have a cat and a dog.
- She eats an apple every day.
- He is an engineer. She is a doctor.
- It takes an hour. (h is silent)
- She studies at a university. (u sounds like “you”)
- Two cats, three boxes, two babies, four children.
Look at an hour and a university. Is the choice about the first letter or the first sound?
Rule
a or an? It depends on the first sound, not the letter:
- a + consonant sound: a book, a pen, a university (“you”), a uniform, a European
- an + vowel sound: an apple, an egg, an idea, an orange, an umbrella, an hour (silent h), an honest man
Use a/an with jobs: She’s a nurse. Don’t use a/an with plurals or uncountable nouns (water, rice).
Plurals:
| Rule | Examples |
|---|---|
| most nouns: + s | book → books, car → cars |
| -s, -ss, -x, -ch, -sh: + es | bus → buses, box → boxes, watch → watches, dish → dishes |
| consonant + y: y → ies | baby → babies, city → cities (but boy → boys) |
| -f / -fe: → ves | knife → knives, wife → wives |
| irregular | man → men, woman → women, child → children, person → people, foot → feet, tooth → teeth |
Watch Out
- ✗ a apple → ✓ an apple
- ✗ an university → ✓ a university (it starts with a “you” sound)
- ✗ She is doctor. → ✓ She is a doctor. (jobs need a/an)
- ✗ two childs / two persons → ✓ two children / two people (irregular)
Practice
- ___ apple
- ___ book
- ___ hour
- ___ university
- He is ___ engineer.
- Plural of box
- Plural of city
- Plural of child
Show the answers
- an
- a
- an
- a
- an
- boxes
- cities
- children
Your Turn
Look around the room. Write six things you can see with a or an (a lamp, an umbrella…). Then write three sentences with plurals: There are two windows.
Connect
Our Grammar Quiz includes quick a/an and plural questions at A1.
Practise tricky plural spellings like babies and knives in our Spelling Quiz.
CEFR A1 — Reading: I can understand familiar names, words and very simple sentences, for example on notices and posters.
- Imagery: Meaning, 7 Types and Examples in Writing - October 10, 2026
- Literary Devices: 30 Common Devices with Meanings and Examples - October 9, 2026
- Bandwagon Fallacy: Meaning, Examples and Origin - October 8, 2026
Reading as a guest. Create a free account or log in to save your progress, mark lessons complete and earn a certificate.