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Irregular Plural Nouns
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    Most plurals are formed by adding 's' or 'es', but not these ones. How many do you know? (Upper Intermediate)
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    Mr Linh
  • child
    children
  • 10 points
  • elf
    elves
  • 20 points
  • goose
    geese
  • 15 points
  • half
    halves
  • 10 points
  • knife
    knives
  • 15 points
  • leaf
    leaves
  • 15 points
  • life
    lives
  • 10 points
  • medium
    media
  • 20 points
  • man
    men
  • 5 points
  • mouse
    mice
  • 10 points
  • ox
    oxen
  • 20 points
  • radius
    radii
  • 25 points
  • scarf
    scarves
  • 20 points
  • self
    selves
  • 20 points
  • tooth
    teeth
  • 5 points
  • wife
    wives
  • 10 points
  • woman
    women
  • 5 points
  • wolf
    wolves
  • 15 points
  • loaf
    loaves
  • 15 points
  • appendix
    appendices
  • 25 points
  • foot
    feet
  • 10 points
  • person
    people
  • 10 points
  • fish
    fish
  • 10 points
  • sheep
    sheep
  • 10 points
  • cactus
    cacti
  • 25 points
  • alumnus
    alumni
  • 20 points
  • fungus
    fungi
  • 20 points
  • axis
    axes
  • 20 points
  • analysis
    analyses
  • 20 points
  • hypothesis
    hypotheses
  • 25 points
  • oasis
    oases
  • 20 points
  • thesis
    theses
  • 15 points
  • matrix
    matrices
  • 20 points
  • index
    indeces
  • 20 points
  • bacterium
    bacteria
  • 25 points
  • phenomenon
    phenomena
  • 25 points
  • deer
    deer
  • 15 points
  • offspring
    offspring
  • 15 points
  • series
    series
  • 15 points
  • species
    species
  • 15 points
  • vertebra
    vertebrae
  • 20 points
  • formula
    formulae
  • 20 points
  • antenna
    antennae
  • 20 points
  • louse
    lice
  • 20 points
  • nucleus
    nuclei
  • 20 points
  • die
    dice
  • 15 points
  • salmon
    salmon
  • 10 points
  • moose
    moose
  • 15 points
  • quiz
    quizzes
  • 15 points
  • aircraft
    aircraft
  • 10 points