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Irregular Plural Nouns

English 50 Featured

Most plurals are formed by adding 's' or 'es', but not these ones. How many do you know? (Upper Intermediate ESL)

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#upper intermediate #irregular plurals

child

children

10

elf

elves

20

goose

geese

15

half

halves

10

knife

knives

15

leaf

leaves

15

life

lives

10

medium

media

20

man

men

5

mouse

mice

10

ox

oxen

20

radius

radii

25

scarf

scarves

20

self

selves

20

tooth

teeth

5

wife

wives

10

woman

women

5

wolf

wolves

15

loaf

loaves

15

appendix

appendices

25

foot

feet

10

person

people

10

fish

fish

10

sheep

sheep

10

cactus

cacti

25

alumnus

alumni

20

fungus

fungi

20

axis

axes

20

analysis

analyses

20

hypothesis

hypotheses

25

oasis

oases

20

thesis

theses

15

matrix

matrices

20

index

indeces

20

bacterium

bacteria

25

phenomenon

phenomena

25

deer

deer

15

offspring

offspring

15

series

series

15

species

species

15

vertebra

vertebrae

20

formula

formulae

20

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antenna

antennae

20

louse

lice

20

nucleus

nuclei

20

die

dice

15

salmon

salmon

10

moose

moose

15

quiz

quizzes

15

aircraft

aircraft

10