English Notes: Nouns — Singular and Plural Nouns

A noun names a person, place, animal, thing or idea. Singular means one. Plural means more than one. These notes help you change nouns from singular to plural.


Quick rule: Numbers

Use singular with 1 (one) and plural with other numbers: one book, two books, five matatus 🚍.

1. Regular plurals

  • Most nouns: add -s → cat → cats 🐱
  • Nouns ending in -s, -ss, -sh, -ch, -x or -z: add -es → bus → buses, box → boxes 📦

2. Nouns ending in -y

  • If a consonant comes before -y, change y to i and add -es:
    baby → babies
  • If a vowel (a, e, i, o, u) comes before -y, just add -s:
    boy → boys

3. Nouns ending in -f or -fe

Often change -f / -fe to -ves → leaf → leaves, knife → knives. (Some are exceptions: roof → roofs.)

4. Irregular plurals (learn these)

  • man → men, woman → women
  • child → children
  • tooth → teeth, foot → feet
  • mouse → mice
  • person → people

5. Same in singular and plural

Some words do not change: sheep → sheep, fish → fish (but "fishes" is used when talking about different kinds of fish).

6. Uncountable (no plural)

Words like water, rice, sugar are not counted with -s. We say some water, not "waters" (unless you mean different bodies of water).

7. Compound nouns

For words made of two parts, usually make the main word plural: mother-in-law → mothers-in-law.


Examples

  • book → books
  • bus → buses
  • city → cities
  • roof → roofs
  • knife → knives
  • child → children
  • sheep → sheep
  • matatu → matatus (a Kenyan example)

Practice — Change each to plural

  1. 1 cat → ______
  2. 2 box → ______
  3. 3 lady → ______
  4. 4 bus → ______
  5. 5 child → ______
  6. 6 rice → ______ (can we count rice?)
  7. 7 mother-in-law → ______
  8. 8 knife → ______
Answers (click to show)
  1. cats
  2. boxes
  3. ladies
  4. buses
  5. children
  6. Rice is uncountable — we say "some rice" (not "rices").
  7. mothers-in-law
  8. knives

Tips for remembering

  • Read and write examples. Practice with words you see at home and school.
  • When a word looks different, try to remember its irregular form (man → men).
  • If unsure, think: "Do I add -s or -es? Is it irregular? Is it uncountable?"

Good luck! Try making 5 more plural forms from words you find in class.


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