Singular number | Plural number |
a man, a woman, a foot, a tooth, a goose, a mouse, a louse, an ox, a child | men, women, feet, teeth, geese, mice, lice, oxen, children |
a radius, a corpus, a formula, a bacterium, a crisis, a criterion, an index, a bureau | radii (или radiuses), corpora, formulae (или formulas), bacteria, crises, criteria, indices, bureaux |
a deer, a sheep, a salmon, a trout, a cod, an aircraft, a spacecraft, a crossroads, a means, a series, a species, a works | deer, sheep, salmon, trout, cod, aircraft, spacecraft, crossroads, means, series, species, works |
Special Cases |
Only Singular number | Only Plural number |
advice, information, news, measles, mumps physics, knowledge, furniture, luggage, gymnastics, athletics, bowls, billiards, dominoes, darts, draughts | annals, archives, arms (weapons), belongings, clothes, cattle, poultry, scissors, dregs, earnings, wages, goods, trousers, binoculars, shorts, shoes, gloves, pyjamas, glasses, spectacles, earrings, socks, outskirts, premises, tights, remains, pliers, riches, surroundings, thanks, the tropics, whereabouts, people, police, stairs, (good)looks, |