Examples for Form and use plurals :

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