Examples for Form plural :

Regular Plural Formation

  1. Cat → Cats
  2. Book → Books
  3. Dog → Dogs

Nouns Ending in -s, -ss, -sh, -ch, -x, or -z

  1. Bus → Buses
  2. Class → Classes
  3. Bush → Bushes
  4. Watch → Watches
  5. Box → Boxes
  6. Quiz → Quizzes

Nouns Ending in -f or -fe

  1. Leaf → Leaves
  2. Wolf → Wolves
  3. Knife → Knives
  4. Loaf → Loaves
  5. Calf → Calves
  6. Shelf → Shelves
  7. Self → Selves
  8. Thief → Thieves
  9. Wife → Wives

Exceptions:

  1. Roof → Roofs
  2. Chef → Chefs
  3. Belief → Beliefs
  4. Cliff → Cliffs
  5. Proof → Proofs

Nouns Ending in -o

  1. Potato → Potatoes
  2. Tomato → Tomatoes
  3. Hero → Heroes
  4. Echo → Echoes
  5. Torpedo → Torpedoes
  6. Volcano → Volcanoes
  7. Mango → Mangoes
  8. Buffalo → Buffaloes
  9. Mosquito → Mosquitoes
  10. Negro → Negroes
  11. Zero → Zeroes
  12. Cargo → Cargoes
  13. Domino → Dominoes
  14. Embargo → Embargoes
  15. Flamingo → Flamingoes
  16. Tornado → Tornadoes
  17. Veto → Vetoes

Exceptions:

  1. Piano → Pianos
  2. Photo → Photos
  3. Halo → Halos
  4. Soprano → Sopranos
  5. Kimono → Kimonos
  6. Studio → Studios
  7. Zoo → Zoos
  8. Radio → Radios
  9. Video → Videos
  10. Kangaroo → Kangaroos

Nouns Ending in -y

  1. Baby → Babies
  2. City → Cities
  3. Party → Parties

Exceptions:

  1. Boy → Boys
  2. Day → Days
  3. Key → Keys

Nouns Ending in -us

  1. Cactus → Cacti
  2. Focus → Foci

Nouns Ending in -is

  1. Analysis → Analyses
  2. Thesis → Theses

Nouns Ending in -on

  1. Phenomenon → Phenomena
  2. Criterion → Criteria

Nouns Ending in -um

  1. Datum → Data
  2. Bacterium → Bacteria

Irregular Plurals

  1. Child → Children
  2. Foot → Feet
  3. Tooth → Teeth
  4. Mouse → Mice
  5. Person → People

Unchanging Nouns

  1. Sheep → Sheep
  2. Deer → Deer
  3. Species → Species
  4. Fish → Fish (context-dependent)

Practice Examples

  1. Leaf → Leaves
  2. City → Cities
  3. Piano → Pianos
  4. Mouse → Mice
  5. Analysis → Analyses

Sentence Examples

  1. The leaf falls from the tree. → The leaves fall from the trees.
  2. The city is large. → The cities are large.
  3. She plays the piano. → They play the pianos.
  4. The mouse is small. → The mice are small.
  5. The analysis is complete. → The analyses are complete.
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