Sheep or sheeps? Fish or fishes? If you fancy yourself a grammarian then take our fun 20 question plurals exam, covering regular and irregular forms, and see if you ace the test or if you still need to brush up on some grammar points!

1. What is the plural of this word?

  • Tooths
  • Toothes
  • Teeth
  • Teeths

✔️Right Answer: Teeth

2. Can you figure out the plural of this word?

  • Geese
  • Geeses
  • Goose
  • Gooses

✔️Right Answer: Geese

3. What about this word?

  • Puppys
  • Puppyes
  • Puppees
  • Puppies

✔️Right Answer: Puppies

4. What is the plural of this word?

  • Stomach
  • Stomachs
  • Stomaches
  • Stomi

✔️Right Answer: Stomachs

5. Can you find the plural of this word?

  • Wolf
  • Wolfs
  • Wolfes
  • Wolves

✔️Right Answer: Wolves

6. What is the plural of this word?

  • Tomato
  • Tomatos
  • Tomates
  • Tomatoes

✔️Right Answer: Tomatoes

7. Can you find the plural of this word?

  • Vertibri
  • Vertebras
  • Vertebrae
  • Vertebraes

✔️Right Answer: Vertebrae

8. Can you spot the correct plural of this word?

  • Memi
  • Memoes
  • Memos
  • Memes

✔️Right Answer: Memos

9. What is the plural of this word?

  • Crises
  • Crisses
  • Crisis
  • Cresis

✔️Right Answer: Crises

10. What’s the plural of this word?

  • Sheep
  • Sheeps
  • Sheepes
  • Shepes

✔️Right Answer: Sheep

11. Can you figure out the plural of this word?

  • Hero
  • Heros
  • Heroes
  • Herroes

✔️Right Answer: Heroes

12. What is the plural of this word?

  • Passersbys
  • Passerbys
  • Passerbyes
  • None of these are the correct plural form

✔️Right Answer: None of these are the correct plural form

13. Can you find the plural of this word?

  • Octopi
  • Octopus
  • Octopii
  • None of these are the correct plural form

✔️Right Answer: None of these are the correct plural form

14. What is the plural of this word?

  • Sisters-in-laws
  • Sister-in-laws
  • Sister-in-law
  • Sisters-in-law
  • None of these are the correct plural form

✔️Right Answer: Sisters-in-law

15. Can you spot the plural of this word?

  • Millennia
  • Millenia
  • Millennium
  • Millenniums
  • None of these are the correct plural form

✔️Right Answer: Millennia

16. Which statement below is true about this word?

  • It is sometimes pluralized as ‘bacterias’
  • In speech and in journalism ‘bacteria’ is also used as the singular form
  • The plural form is ‘bacterium’
  • All of these are true

✔️Right Answer: All of these are true

17. Which statement below is false when it comes to this word?

  • The word is a collective singular noun
  • The singular form of the word is ‘core’
  • The singular form of the word is ‘corpus’
  • The pronunciation of the singular and plural form is the same
  • The plural and singular forms are written the same
  • All of these statements are false

✔️Right Answer: The pronunciation of the singular and plural form is the same

18. What is the SINGULAR form of this word?

  • Paparazz
  • Paparazzo
  • Paparazzer
  • Paparazzi
  • Both paparazz and paparazzer are acceptable plural forms
  • Both paparazzo and paparazzi are acceptable plural forms

✔️Right Answer: Paparazzo

19. What is NOT an acceptable plural?

  • Loci
  • Indexes
  • Hippopotami
  • Indices
  • Offsprings
  • Hippopotamuses

✔️Right Answer: Offsprings

20. Which word below is NOT an accepted plural form?

  • Plateaus
  • Quanta
  • Radii
  • Oxes
  • Tunas
  • Stadia
  • Plateaux
  • Stadiums

✔️Right Answer: Oxes