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PLURAL NOUN FORMS When a word ends in -ex or -ix the more formal plural ending is ices. In more general contexts -es is used Irregular Plurals o There are many common nouns that have irregular plurals. For example: child - children | person - people | foot - feet | mouse mice | tooth - teeth Some nouns have identical plural and singular forms, although they are still considered to have a plural form. For example: aircraft - aircraft | fish - fish | headquarters - headquarters | sheep - sheep | species - species Uncountable nouns on the other hand have no plural form and take a singular verb (is / was ...). For example: advice | information | luggage | news Some nouns (especially those associated with two things) exist only in the plural form and take a plural verb (are / were...). For example: cattle | scissors | trousers | tweezers | congratulations | pyjamas Nouns that stem from older forms of English or are of foreign origin often have odd plurals. For example: analysis - analyses | crisis - crises | ox - oxen | index - indices or indexes eg.: appendices, appendixes, indices, indexes In compound nouns the plural ending is usually added to the main noun. For example: court martial - courts martial | son-in-law - sons-in-law | passer-by - passers-by In certain cases the plural form of a word is the same as the singular o eg.: deer, sheep, swine and in some words both forms end in -s o eg.: measles, corps, species, means There are two main types of plural which take either singular of plural verbs: o words like media and data. These are in common use as singular nouns although, strictly, this is incorrect o words ending in -ics. Generally, these are treated as plural when the word relates to an individual person or thing eg.: his mathematics are poor, the hall's acoustics are good and as singular when it is regarded more strictly as a science eg.: mathematics is an important subject. PLURAL NOUN FORMS Irregular Plurals There are many common nouns that have irregular plurals. For example: child - children | person - people | foot - feet | mouse mice | tooth - teeth Some nouns have identical plural and singular forms, although they are still considered to have a plural form. For example: aircraft - aircraft | fish - fish | headquarters - headquarters | sheep - sheep | species - species Uncountable nouns on the other hand have no plural form and take a singular verb (is / was ...). For example: advice | information | luggage | news Some nouns (especially those associated with two things) exist only in the plural form and take a plural verb (are / were...). For example: cattle | scissors | trousers | tweezers | congratulations | pyjamas Nouns that stem from older forms of English or are of foreign origin often have odd plurals. For example: analysis - analyses | crisis - crises | ox - oxen | index - indices or indexes When a word ends in -ex or -ix the more formal plural ending is ices. In more general contexts -es is used o eg.: appendices, appendixes, indices, indexes In compound nouns the plural ending is usually added to the main noun. For example: court martial - courts martial | son-in-law - sons-in-law | passer-by - passers-by In certain cases the plural form of a word is the same as the singular o eg.: deer, sheep, swine and in some words both forms end in -s o eg.: measles, corps, species, means There are two main types of plural which take either singular of plural verbs: o words like media and data. These are in common use as singular nouns although, strictly, this is incorrect o words ending in -ics. Generally, these are treated as plural when the word relates to an individual person or thing eg.: his mathematics are poor, the hall's acoustics are good and as singular when it is regarded more strictly as a science eg.: mathematics is an important subject. Nouns which are only singular and take singular verb form: Hair, money, advice, news, baggage, trouble, information, progress, success, weather, works, furniture, evidence, knowledge, funeral Nouns which are only plural and take plural verb form: Goods, arms, wages, clothes, customs, looks, savings, belongings, surroundings + pair nouns: jeans, glasses, sunglasses, scissors, trousers, shorts, tights, overalls A collective noun is a noun that denotes a collection of persons or things regarded as a unit. Usage Note: In American usage, a collective noun takes a singular verb when it refers to the collection considered as a whole, as in: The family was united on this question. The enemy is suing for peace. It takes a plural verb when it refers to the members of the group considered as individuals, as in: My family are always fighting among themselves. The enemy were showing up in groups of three or four to turn in their weapons. In British usage, however, collective nouns are more often treated as plurals: Nouns which are only singular and take singular verb form: Hair, money, advice, news, baggage, trouble, information, progress, success, weather, works, furniture, evidence, knowledge, funeral Nouns which are only plural and take plural verb form: Goods, arms, wages, clothes, customs, looks, savings, belongings, surroundings + pair nouns: jeans, glasses, sunglasses, scissors, trousers, shorts, tights, overalls A collective noun is a noun that denotes a collection of persons or things regarded as a unit. Usage Note: In American usage, a collective noun takes a singular verb when it refers to the collection considered as a whole, as in: The family was united on this question. The enemy is suing for peace. It takes a plural verb when it refers to the members of the group considered as individuals, as in: My family are always fighting among themselves. The enemy were showing up in groups of three or four to turn in their weapons. In British usage, however, collective nouns are more often treated as plurals: The government have not announced a new policy. The team are playing in the test matches next week. A collective noun should not be treated as both singular and plural in the same construction; thus: The family is determined to press its (not their) claim. Among the common collective nouns are: Committee, clergy, company, enemy, group, family, flock, public, team Since proper nouns usually refer to something or someone unique, they do not normally take plurals. However, they may do so, especially when number is being specifically referred to: There are three Davids in my class We met two Christmases ago For the same reason, names of people and places are not normally preceded by determiners the or a/an, though they can be in certain circumstances: It's nothing like the America I remember My brother is an Einstein at maths The government have not announced a new policy. The team are playing in the test matches next week. A collective noun should not be treated as both singular and plural in the same construction; thus: The family is determined to press its (not their) claim. Among the common collective nouns are: Committee, clergy, company, enemy, group, family, flock, public, team Since proper nouns usually refer to something or someone unique, they do not normally take plurals. However, they may do so, especially when number is being specifically referred to: There are three Davids in my class We met two Christmases ago For the same reason, names of people and places are not normally preceded by determiners the or a/an, though they can be in certain circumstances: It's nothing like the America I remember My brother is an Einstein at maths