Countable Nouns - Irregular Plurals
SINGULAR
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PLURAL
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Part One |
analysis |
analyses |
bacterium |
bacteria |
basis |
bases |
child |
children |
crisis |
crises |
criterion |
criteria |
curriculum |
curricula |
datum |
data |
diagnosis |
diagnoses |
fish |
fish/fishes |
focus |
foci/focuses |
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foot |
feet |
hypothesis |
hypotheses |
index |
indices/indexes |
man |
men |
means |
means |
medium |
media |
mouse |
mice |
ox |
oxen |
parenthesis |
parentheses |
phenomenon |
phenomena |
series |
series |
sheep |
sheep |
species |
species |
stimulus |
stimuli |
syllabus |
syllabi/syllabuses |
thesis |
theses |
tooth |
teeth |
woman |
women |
Part Two |
alumnus |
alumni |
antenna |
antennae/antennas |
appendix |
appendices |
axis |
axes |
deer |
deer/deers |
ellipsis |
ellipses |
formula |
formulae/formulas |
fungus |
fungi/funguses |
goose |
geese |
louse |
lice |
nucleus |
nuclei |
matrix |
matrices |
oasis |
oases |
paralysis |
paralyses |
radius |
radii |
stratum |
strata |
synthesis |
syntheses |
synopsis |
synopses |
vertebra |
vertebrae |
vita |
vitae |
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