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(The possessive determiner "their" refers to an unnamed group of people.) (The possessive determiner "his" probably refers to Peter, but it could feasible refer to another male individual.) (3) A possessive determiner ("my," "your," "his," "her," "its," "our," and "their") must agree in number and gender with the noun it represents. Read more about demonstrative determiners. ("This" is a singular determiner, and "town" is a singular noun.)ĭemonstrative determiners are called demonstrative adjectives in traditional grammar. ("These" is a plural determiner, and "reactions" is a plural noun.) (2) A demonstrative determiner ("these," "those," "this," and "that") must agree in number with the noun it modifies. ("The mouse" is a singular subject, and "chews" is a singular verb.) ("The mice" is a plural subject, and "are eating" is a plural verb.) ("They" is a plural subject, and "are" is a plural verb.) (1) A plural subject must have a plural verb, and a singular subject must have a singular verb.
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In English, lots of grammatical constructions must agree in number. Here's an interesting quirk with grammatical number: The amount zero is treated as plural. Read more about forming the plurals of nouns.
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However, not every noun forms its plural this way. Most of the time in English, a noun forms its plural by adding "-s" or "-es" to its singular version. Here are four countable nouns that are plural in number: A countable noun contrasts with a non-countable noun, which does not have a plural form (e.g., music, bravery). A noun with a singular and plural form (e.g., dog/dogs, man/men) is called a countable noun. Most nouns have singular and plural forms.
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Most Nouns Have Singular and Plural Forms The terms "plural" and "singular" are values of the grammatical category of number.
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