Wednesday, February 17, 2010

GRAMMAR NO. 3: Irregular Plurals

EXPLANATION

Regular Plural

Nouns in English make the plural form by adding -s. For example:

table + s = tables

cup + s = cups

When the noun ends with the sounds /s, z, sh, ch/, the plural is formed by adding -s. This rule is phonetic, and is applicable for the formation of the 3rd person Simple Present and Saxon Genitive. For example:

church + es = churches

dish + es = dishes

bus + es = buses

buzz + es = buzzes (the sound of a bell, as to enter a house)

When the plural is fomed by adding -es, we pronounce /Iz/.

Nouns that finish with -y also take the -es to form the plural and change -y for -i. For example:

poppy + es = poppies (the wild red flower)

However, the difficult aspect of this grammatical construction is the fact that English has a lot of irregular plurals. Below you will find a list.


Irregular Plurals


US -> I

SINGULARPLURAL
alumnusalumni
cactuscacti
focusfoci/focuses
fungusfungi/funguses
nucleusnuclei
radiusradii
stimulusstimuli

IS -> ES

SINGULARPLURAL
axisaxes
analysisanalyses
basisbases
crisiscrises
diagnosisdiagnoses
ellipsisellipses
hypothesishypotheses
oasisoases
paralysisparalyses
parenthesisparentheses
synthesissyntheses
synopsissynopses
thesistheses

IX -> ICES

SINGULARPLURAL
appendixappendices
indexindeces/indexes
matrixmatrices/matrixes

EAU -> EAUX

SINGULARPLURAL
beaubeaux
bureaubureaus/bureaux
tableautableaux/tableaus

*** -> EN

SINGULARPLURAL
childchildren
manmen
oxoxen
womanwomen

*** -> A

SINGULARPLURAL
bacteriumbacteria
corpuscorpora
criterioncriteria
curriculumcurricula
datumdata
genusgenera
mediummedia
memorandummemoranda
phenomenonphenomena
stratumstrata

NO CHANGE

SINGULARPLURAL
deerdeer
fishfish
meansmeans
offspringoffspring
seriesseries
sheepsheep
speciesspecies

OO -> EE

SINGULARPLURAL
footfeet
goosegeese
toothteeth

A -> AE

SINGULARPLURAL
antennaantennae/antennas
formulaformulae/formulas
nebulanebulae
vertebravertebrae
vitavitae

OUSE -> ICE

SINGULARPLURAL
louselice
mousemice

O -> OES

SINGULARPLURAL
tomatotomatoes
potatopotatoes
volcanovolcanoes, volcanos
heroheroes

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