| No change in singular and plural forms |
| Singular |
Plural |
| aircraft |
aircraft |
| cannon |
cannon [ cannons ] |
| cod |
cod |
| deer |
deer |
| dozen |
dozen |
| fish |
fish [ fishes ] |
| salmon |
salmon |
| sheep |
sheep |
| swine |
swine |
| trout |
trout |
|
| Singular only; No plural forms |
| Singular |
advice, baggage, clothing, copper, corn, cotton, equipment, furniture, gold, information, knowledge, luggage, machinery, molasses, money, news, poetry, scenery, silver, stationery, sugar, traffic, wheat
|
| These are uncountable nouns. |
| |
|
| Plural only; No singular forms |
| Plural |
binoculars, cattle, clothes, drawers, dregs, gallows, glasses, measles, mumps, oats, pants, pincers, pliers, police, pyjamas, scales, scissors, shears, shorts, spectacles, tongs, trousers, tweezers
|
| Many of these are instruments or tools made of two parts. |
| |
|
|