Name: _________________________________________
6B- _____
Date: _________________________________
Grammar: List of Irregular Nouns
Directions: Use the following lists to help you learn to pluralize irregular nouns.
Singular: one
Plural: more than one
Irregular Noun: a noun that has an unusual plural form, without the typical “s”
***  a
Singular
Plural
criterion
criteria
medium
media
***  en
Singular
Plural
child
children
man, woman
men, women
ox
oxen
ch, sh, s, x, and z  es
Singular
Plural
lunch
lunches
dish
dishes
bus
buses or busses
box
boxes
fox
foxes
buzz
buzzes
is  es
Singular
Plural
axis
axes
analysis
analyses
crisis
crises
ellipsis
ellipses
hypothesis
hypotheses
oasis
oases
parenthesis
parentheses
synopsis
synopses
thesis
theses
f or fe  ves
Singular
Plural
calf
calves
half
halves
knife
knives
life
lives
loaf
loaves
self
selves
thief
thieves
*Exceptions: belief  beliefs; chief  chiefs; fife  fifes;
reef  reefs; roof  roofs; safe  safes
(consonant +) o  oes
Singular
Plural
echo
echoes
hero
heroes
potato
potatoes
tomato
tomatoes
veto
vetoes
*Exceptions: alto  altos; auto  autos; banjo  banjos; memo  memos
oo  ee
Singular
Plural
foot
feet
goose
geese
tooth
teeth
ouse  ice
Singular
Plural
louse
lice
mouse
mice
us  i
Singular
Plural
cactus
cacti
fungus
fungi / funguses
nucleus
nuclei / nucleuses
radius
radii / radiuses
stimulus
stimuli
(consonant +) y  ies
Singular
Plural
baby
babies
family
families
fly
flies
sky
skies
story
stories
try
tries
No Change
Singular
Plural
deer
deer
fish
fish
offspring
offspring
sheep
sheep
species
species
Letters
Singular
Plural
i
i’s
A
A’s
Numbers
Singular
Plural
1980
1980’s
7
7’s