§ 171. English nouns that are inflected for number (count nouns) have singular and plural forms.
Singular denotes one,plural denotes more than one. Most count nouns are variable and can occur with either singular or plural number. In Modern English the singular form of a noun is unmarked (zero). The plural form is marked by the inflexion -(e)s. The spelling and the pronunciation of the plural morpheme vary.
Regular plurals
I. Nouns ending in vowels and voiced consonants have the plural ending pronouced as [z]:
bee - bees [bi:z], dog - dogs [dɔgz]
II. Nouns ending in voiceless consonants have a voiceless ending:
book - books [buks]
III. Nouns ending in -s, -sh, -as, -ch, -x, -z, (sibilants) have the ending [iz]:
actress - actresses ['æktrɪsɪz]
bush - bushes ['bu∫ɪz]
watch - watches ['wot∫ɪzj
box - boxes ['boksɪz]
IV. Nouns ending in -o have the ending [z]:
hero - heroes ['hɪǝrouz]
photo- photoes ['foutouz]
The regular plural inflexion of nouns in -o has two spellings;-oswhich occurs in the following cases:
a) after a vowel - bamboos, embryos, folios, kangaroos, radios, studios, zoos;
b) in proper names - Romeos, Eskimos, Filipinos;
c) in abbreviations, kilos (kilogramme), photos (photograph), pros (professional);
d) also in some borrowed words: pianos, concertos, dynamos, quartos, solos, tangos, tobaccos.
In other cases the spelling is-oes:tomatoes, echoes, Negroes, potatoes, vetoes, torpedoes, embargoes
Note:
Some nouns may form their plural in either way:
oes/os:cargo(e)s, banjo(e)s, halo(e)s.
V. The letter -yusually changes into-i:
sky skies [skaiz]
But the letter -y remains unchanged -ys:
a) after vowels:
days (except in nouns ending in-quy: soliloquy - soliloquies).
b) in proper names:
the two Germanys, the Kennedys, the Gatsbys;
c) in compounds:
stand-bys, lay-bys.
The word penny has two plural forms:
pence (irregular) - in British currency to denote a coin of this value or a sum of money:
Here is ten pence (in one coin or as a sum of money);
pennies (regular) - for individual coins.
Here are ten pennies.
VI. Thirteen nouns ending in-f(e) form their plural changing-f(e)into-v(e): the ending in this case is pronounced [z]:
In a phrase like "Miss Brown" two different forms are used for the plural. We may either say "the Miss Browns" or "the Misses Brown", the latter being generally considered more correct.
Irregular plurals
§ 173. For historical reasons certain nouns form their plural differently.
1. Seven nouns distinguish plural from singular by vowel change:
man - men
woman - women
tooth - teeth
foot – feet
goose - geese
mouse - mice
louse - lice
2. Two nouns have-en to mark the plural:
ox - oxen, child - children.
Brother has two plural forms: brothers and brethren, the latter being used as a religious term or in elevated style to denote people of the same creed, not relations.
3. With some nouns the plural is identical with the singularform (fordetails see § 176, II):
a) sheep-sheep (овца/ы);
swine - swine (свинья/и);
deer - deer (олень/и);
grouse - grouse (куропатка/и).
This sheep looks small. All those sheep are good.
I bought a grouse (three grouse for dinner).
There’re so many fish, they splinter the paddles.
Note:
There, are some animal names that have two plurals:
fish - fish/fishes, pike - pike/pikes, trout - trout/trouts, carp –carp/carps, salmon - salmon/salmons.
The zero plural is more common to denote hunting quarries (We caught only a few fish. We caught five salmon. He shot quail (перепелок) to make money), whereas the regular plural is used to denote different individuals, species, kinds of animal, especially fish with the same name or insects or other small animals which cause disease or damage.
The plant was covered in greenfly.
This animal is infected with hookworm.
There are three greenflies on my hand.
Two large hookworms were found in his stomach.
There were two quailsforsale.
b) identical singular and plural forms are also typical of nationality nouns in -ese, -ss:Chinese, Japanese, Portuguese, Swiss.
We met a Japanese. We met many Japanese on our holiday.
Note:
The word for people of the country is the same as the plural noun; the other way is to use substantivized adjectives in this sense:
Englishmen - the English Dutchmen - the Dutch.
c) two nouns borrowed from Latin and one from French also have identical forms for singular and plural:
series - series (ряд, серия);
species - species (вид, порода, род)
corps [ko:] - corps [ko:z] (корпус, род войск).
d) names, indicating number, such as:
pair, couple, dozen, score (два десятка),
stone (мера веса: 14 англ. фунтов = 6,35 кг) and
head (голова - поголовье скота)
have the same form for both the singular and plural when they are preceded by a numeral, that is, they
function as an indication of a kind of measure: two dozen of handkerchiefs, five dozen of eggs. The child
weighs two stone. One thousand head of cattle.
But when they have no number as predeterminer they take the usual plural form: dozens of times, to go in pairs.
4. A number of foreign (particularly Latin and Greek) nouns have retained their original plural endings.