Below are some examples of regular nouns changing from singular to plural by adding "-s".
- Singular form: cat – Plural form: cats
- Singular form: book – Plural form: books
- Singular form: pen – Plural form: pens
- Singular form: cup – Plural form: cups
- Singular form: car – Plural form: cars
- Singular form: tree – Plural form: trees
- Singular form: table – Plural form: tables
- Singular form: chair – Plural form: chairs
- Singular form: glass – Plural form: glasses
- Singular form: bag – Plural form: bags
- Singular form: box – Plural form: boxes
- Singular form: hat – Plural form: hats
- Singular form: computer – Plural form: computers
- Singular form: bottle – Plural form: bottles
- Singular form: door – Plural form: doors
- Singular form: shoe – Plural form: shoes
- Singular form: phone – Plural form: phones
- Singular form: ball – Plural form: balls
- Singular form: dog – Plural form: dogs
- Singular form: key – Plural form: keys
- Singular form: bus – Plural form: buses
- Singular form: cup – Plural form: cups
- Singular form: plate – Plural form: plates
- Singular form: fork – Plural form: forks
- Singular form: spoon – Plural form: spoons
- Singular form: bike – Plural form: bikes
- Singular form: coat – Plural form: coats
- Singular form: umbrella – Plural form: umbrellas
- Singular form: lock – Plural form: locks
- Singular form: letter – Plural form: letters
- Singular form: map – Plural form: maps
- Singular form: picture – Plural form: pictures
- Singular form: flower – Plural form: flowers
- Singular form: grass – Plural form: grasses
- Singular form: bird – Plural form: birds
- Singular form: plant – Plural form: plants
- Singular form: leaf – Plural form: leaves
- Singular form: desk – Plural form: desks
- Singular form: watch – Plural form: watches
- Singular form: drum – Plural form: drums
- Singular form: guitar – Plural form: guitars
- Singular form: piano – Plural form: pianos
- Singular form: mouse – Plural form: mice
- Singular form: baby – Plural form: babies
- Singular form: city – Plural form: cities
- Singular form: wool – Plural form: wools
In English, most nouns are made plural by adding -s or -es to the end. Note that there are some exceptions to this rule. These are known as irregular plurals and require different changes (e.g., mouse => mice).
