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What are Plural nouns? Rules and Exceptions

Grade 6
Jun 14, 2023

Plural Noun

Plural Nouns – A noun can be singular or plural.  A plural noun names more than one person, place, thing, or idea. Plural nouns often end in -s or –es. Some plural nouns don’t change and remain the same as in the singular form. Some nouns form plural nouns in a different way.

Plural Nouns Rules

To make regular singular nouns plural, add –s to the end. Examples – Mat-Mats, Bake-Bakes

If the singular noun ends in -s,-ss,-ch,-sh, -x, or –z add –es to the end to make it plural.

  • Boss- Bosses
  • Bus- Buses
  • Dish- Dishes
  • Bench- Benches
  • Box- Boxes
  • Waltz- Waltzes

In some cases when singular nouns end in –s or –z, doubles or –z prior to adding –es to make it plural.

  • Fez – Fezzes
  • Quiz – Quizzes

If the singular noun ends with –f or –fe,’-f/-fe’ is often changed it to ‘ve’, and –s is added to make it plural.

  • Life -Lives
  • Leaf -Leaves
  • Wolf -Wolves


  • Roof -Roofs
  • Belief -Beliefs
  • Chef -Chefs
  • Chief -Chiefs
  • Cliff -Cliffs

If a singular noun ends with –y, and the letter before –y is consonant, add –ies to make it plural

  • City – Cities
  • Baby – Babies
  • Story – Stories
  • Country – Countries

If a singular noun ends with –y, and the letter before –y is a vowel, add –s to make it plural

  • Donkey -Donkeys
  • Guy- Guys
  • Boy -Boys
  • Holiday -Holidays

If a singular noun ends with –o, add –es to make it plural

  • Potato –Potatoes
  • Hero -Heroes
  • Tomato -Tomatoes


  • Halo – Halos
  • Video-Videos
  • Photo-Photos
  • Zoo-Zoos

Note – Volcano can take two plural forms –volcanoes or volcanos

  • If a singular noun ends with –us, change it to -i to make it plural
  • Cactus – Cacti
  • Locus-Loci

If a singular noun ends with –is, change it to –es to make it plural

  • Analysis- Analyses
  • Ellipsis -Ellipses
  • If a singular noun ends with –on, change it to –a to make it plural
  • Phenomenon – PhenomenaCriterion-Criteria
  • Exceptions -where plural form and singular form of noun don’t change.
  • Sheep – Sheep
  • Fish- Fish
  • Series- Series
  • Species -Species
  • Deer -Deer

Plural Form of Irregular Nouns- Irregular Nouns Do Not Follow the –s or –es Rule

  • Child – Children
  • Goose – Geese
  • Man- Men
  • Woman – Women
  • Tooth – Teeth
Plural nouns


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