A singular noun needs a singular verb and a plural noun needs a plural verb.
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Nouns ending with –s are often plural whereas verbs ending in –s are always singular.
For example:
1. A verb must agree with its noun (the subject of the sentence).
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2. If two or more singular nouns are joined by “and”, the verb is plural.
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3. If two singular nouns are joined by and and refer to the same person or thing, then its verb is singular.
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4. If the subject consists of two nouns joined by “with” or “as well as”, then its verb agrees with the first noun.
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5. If two or more singular nouns are connected by “or” or “nor”, the verb is singular.
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6. Uncountable nouns take singular verb forms.
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7. Collective nouns (group, family, team etc.) refer to more than one individual but they are considered singular and use singular verbs.
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8. In sentences beginning with “there”, the subject (noun) follows the verb. So the verb will agree with the subject that follows it.
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9. Some countable nouns have only plural forms and they use plural verbs (goods, surroundings, earnings, proceeds).
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10. When a sentence has compound subject which consists of a plural noun and singular noun, the verb agrees with the part of the subject that is closest to it.
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11. Sentences with words such as “each,” “each one,” “either,” “neither,” “anyone,” “everyone,” “everybody,” “anybody,” “everybody,” “nobody,” “somebody,” “someone,” “no one” require singular verbs.
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12. In case of nouns like scissors, pants, shorts, tweezers, binoculars, glasses etc. (which have two parts), plural verbs are used unless they are preceded by “a pair of”.
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