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General


The Rules of Regular and Irregular Plurals

For most nouns, just add -s

For nouns ending in s, x, z, ch or sh, add -es
Singular Plural Singular Plural
hand hands box boxes
rabbit rabbits pitch pitches
key keys wish wishes
clock clocks boss bosses
football footballs buzz buzzes
door doors glass glasses
    

For some words ending in o, add -es

However, for some words ending in o, just add -s
Singular Plural Singular Plural
potato potatoes cello cellos
tomato tomatoes disco discos
hero heroes hairdo hairdos
echo echoes logo logos
banjo banjoes patio patios
The plural of many words ending in o can be spelt with -s or -es. photo photos
piano pianos
radio radios
    

For some words ending in f, change the f to a v and add -es

However, for some words ending in f, just add -s
Singular Plural Singular Plural
half halves chef chefs
loaf loaves cliff cliffs
elf elves ref refs
leaf leaves roof roofs
self selves The plural of some nouns ending in f can be spelt using either variation.
shelf shelves
thief thieves
wolf wolves
    

For some nouns ending in ife, change the f to a v and then add -s

For common nouns that end with consonant + y, change the y to an i and then add -es
Singular Plural Singular Plural
wife wives poppy poppies
life lives fly flies
knife knives penny pennies
spy spies
nappy nappies
sty sties
    

Some nouns are the same in both singular and plural from

For some nouns, change other letters or just change the word completely!
Singular Plural Singular Plural
fish fish person people
sheep sheep child children
deer deer ox oxen
tuna tuna foot feet
salmon salmon tooth teeth
trout trout goose geese
    mouse mice
    louse lice
man men

    Last updated:  30th September 2006

        

First School Years - Regular and Irregular Plurals