Because you need one trouser for each leg - a pair of trousers
Trousers is a plural noun referring to an outer garment covering the body from the waist to the ankles, with a separate part for each leg.
The single form is used in certain circumstances:
I've torn my trouser pocket
She wore a stunning trouser suit
Trouser press
He tore his left trouser leg
Trousers is plural. Each leg is a trouser. A pair of trousers is both legs. There is no plural for more than one pair of trousers.
Actually both of the answers below are correct - if you're talking about a single kind of ammunition, then the word could be both singular and plural. If you're talking about several kinds of different ammunition, the plural is ammunitions.
The singular form is a pair of trousers; the plural form is pairs of trousers.The noun trousers is one of a group of words that are a short form for 'a pair of', words for things things that require two halves to make one.Some other nouns that are used in their shortened form are pants, shorts, glasses, binoculars, tweezers, tongs, or pajamas. The singular forms are a pair of, the plural form is pairs of.
Singular Plural is caterpillars
The word crisis is singular. The plural form of crisis is crises.
Steroids is plural. The singular form of the word is steroid.
Slacks (meaning casual trousers) is plural. It has no singular form
Actually both of the answers below are correct - if you're talking about a single kind of ammunition, then the word could be both singular and plural. If you're talking about several kinds of different ammunition, the plural is ammunitions.
The noun 'trousers' an uncountable noun, a form of binary noun, a word for something with two parts making up the whole; a shortened form for 'a pair of'.The singular form is a pair of trousers.The plural form is pairs of trousers.
The singular form is a pair of trousers; the plural form is pairs of trousers.The noun trousers is one of a group of words that are a short form for 'a pair of', words for things things that require two halves to make one.Some other nouns that are used in their shortened form are pants, shorts, glasses, binoculars, tweezers, tongs, or pajamas. The singular forms are a pair of, the plural form is pairs of.
The word team is singular; the plural form is teams.
The word breeches is the plural form for the noun breech, a word for the lower part or bottom of something; the opening in the rear of the barrel of a gun where bullets are loaded; a vacant or unobstructed space that is man-made; short for a breech delivery, a birth in which the baby's head does not come out first.The word breeches is also an informal word for trousers, a singular or plural form for a pair of breeches, a pair of trousers. The plural forms are pairs of breeches, pairs of trousers.
These is plural, this is singular
if a word refers to a single item it is singular. if it refers to lots of things it is plural."Potato" is singular "potatoes" is a plural word."mouse" is singular, "mice" is a plural word."person" is singular, "people" is a plural word.
The word "she" is singular, used to refer to one female person. It is the third-person singular pronoun for females.
The word "have" is a verb that can be used in both singular and plural contexts. In singular form, it can represent a single entity possessing something. In plural form, it can indicate multiple entities possessing something.
The word metastasis is singular, metastases is plural.
No, the word "list" is singular. The plural form of "list" is "lists."