Irregular nouns plurals in English

الأربعاء مارس 09, 2016 4:44 pm

There are some irregular noun plurals. The most common ones are listed below

Examples

Singular Plural

woman women
man men
child children
tooth teeth
foot feet
person people
leaf leaves
mouse mice
goose geese
half halves
knife knives
wife wives
life lives
elf elves
loaf loaves
potato potatoes
tomato tomatoes
cactus cacti
focus foci
fungus fungi
nucleus nuclei
syllabus syllabi/syllabuses
analysis analyses
diagnosis diagnoses
oasis oases
thesis theses
crisis crises
phenomenon phenomena
criterion criteria
datum data

Some nouns have the same form in the singular and the plural.
Examples
Singular Plural
sheep sheep
fish fish
deer deer
species species
aircraft aircraft