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First Published: June 3, 2005
Last Updated: July 11, 2007
This is a list of most common used irregular
English plural forms. They are based on my own personal usage—not
exhaustive research or survey, and is not meant to be a complete
list.
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Rarely Known |
Somewhat Unknown |
Commonly Known |
medium media
alumnus alumni
alumna alumnae
opus opera
forum fora
corpus corpora*
datum data
addendum addenda
curriculum curricula
analysis analyses
basis bases
focus foci
supernova supernovae |
criterion criteria
phenomenon phenomena
antenna antennae
formula formulae
index indices
vortex/vortices
appendix appendices
stimulus stimuli
bureau bureaux/bureaus
die dice
apparatus apparatuses
(oft-misspelled as apparati) |
leaf leaves
child children
goose geese
ox oxen
mouse mice
foot feet
tooth teeth
man men
woman women
knife knives
wife wives |
*when used as a linguistic term, the plural
form is "corpuses"
SEE ALSO:
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