Plurals
Plurals are words that mean more than one. Most words become plural by adding -s or -es to the end!
What You Need to Know
A singular noun means one thing (e.g. one cat). A plural noun means more than one (e.g. two cats). Most words become plural by adding -s (cat → cats, dog → dogs). Words ending in -s, -sh, -ch, -x or -z add -es (bus → buses, dish → dishes, bench → benches). Some words are irregular — they change in a special way (child → children, mouse → mice).
Key Concepts
Add -s
cat → cats, dog → dogs
Add -es
bus → buses, box → boxes
Singular
One thing only
Irregular
child → children
Add -s
- cat → cats
- dog → dogs
- book → books
- bird → birds
Add -es
- bus → buses
- box → boxes
- dish → dishes
- bench → benches
Irregular
- child → children
- mouse → mice
- tooth → teeth
- foot → feet
Key Vocabulary
Singular
A word meaning one thing, e.g. one apple, one cat, one book.
Plural
A word meaning more than one, e.g. two apples, three cats, many books.
Regular Plural
A plural made by adding -s or -es to a word, e.g. dog → dogs, bus → buses.
Irregular Plural
A plural with a special form — not made with -s, e.g. child → children, mouse → mice.
Knowledge Check
Select the correct answer for each question. Click "Check Answer" to see if you are right.
Question 1
What is the plural of "cat"?
Question 2
What is the plural of "box"?
Question 3
What is the irregular plural of "child"?
Question 4
Which sentence uses the correct plural?
Key Concepts Summary
- ●A plural means more than one — e.g. one cat, two cats.
- ●Most nouns become plural by adding -s (dog → dogs).
- ●Words ending in -s, -sh, -ch, -x or -z add -es (bus → buses, box → boxes).
- ●Irregular plurals change completely — child → children, mouse → mice, tooth → teeth.