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Unlike regular English nouns that form the plural by adding 's' or 'es' to the end of the word, irregular English nouns require vowel or consonant changes, or suffixation. For some common nouns of Old English origin, the vowel undergoes a change (ablaut). For example:

  • foot > feet
  • man > men
  • woman > women
  • mouse > mice
  • tooth > teeth

Some other common nouns of Old English origin require the addition of 'n' or 'en' to form the plural. For example:

  • child > children
  • ox > oxen

Yet other common nouns, which are often of Old English origin and refer to groups of animals, have identical plural and singular form. For example:

  • deer > deer
  • moose > moose
  • trout > trout
  • offspring > offspring
  • sheep > sheep

For nouns of Latin origin that end in an 'a', change the 'a' to 'ae' to form the plural. For example:

  • formula > formulae
  • alumna > alumnae

For nouns of Latin origin that end in 'ex' or 'ix', change the suffix to 'ices'. For example:

  • matrix > matrices
  • vertex > vertices
  • index > indices

For nouns of Latin origin that end in 'is', change the 'is' to 'es'. For example:

  • axis > axes
  • crisis > crises
  • analysis > analyses
  • thesis > theses

For nouns of Latin origin that end in 'on', change 'on' to 'a'. For example:

  • criterion > criteria
  • phenomenon > phenomena
  • automaton > automata

For nouns of Latin origin that end in 'um', change 'um' to 'a'. For example:

  • datum > data
  • medium > media
  • addendum > addenda
  • millennium > millennia

For nouns of Latin origin that end in 'us', change the 'us' to 'i', 'era', 'ora' or 'es'. For example:

  • syllabus > syllabi
  • genus > genera
  • corpus > corpora
  • census > censuses

For nouns of Greek origin that end in 'ma', add 'ta' to the end of the word to form the plural. For example:

  • dogma > dogmata
  • stigma > stigmata
  • schema > schemata

For nouns of French origin that end in 'eau', add 'x' to the end of the word to form the plural. For example:

  • chateau > chateaux
  • beau > beaux
  • bureau > bureaux

For nouns of Hebrew origin, add 'im' or 'ot' to the end of the word to form the plural. For example:

  • cherub > cherubim
  • matzah > matzot
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1w ago

Some irregular nouns and their plural forms include:

  1. mouse - mice
  2. child - children
  3. tooth - teeth
  4. goose - geese
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Q: Irregular nouns and their plural form?
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What are the three rules of irregular nouns?

Irregular nouns do not follow the typical rules of adding -s or -es to form plural forms. Irregular nouns may change their spelling completely to form their plural form. Some common irregular nouns include "child" (plural: children), "man" (plural: men), and "woman" (plural: women).


What are irregular plural nouns?

Irregular plural nouns are nouns that do not follow the typical pattern of adding "-s" or "-es" to form their plural form. Examples include words like "child" (plural: children) and "sheep" (plural: sheep).


What do you understand by regular and irregular noun?

Regular nouns form their plural by adding "-s" or "-es" to the singular form, while irregular nouns have unique plural forms that do not follow typical rules. Examples of regular nouns include "dogs" and "books," whereas irregular nouns like "children" and "mice" have irregular plural forms.


Do Some irregular nouns change their vowel sound to form the plural?

Yes, some irregular nouns change their vowel sound to form the plural. For example, "man" becomes "men" and "foot" becomes "feet."


How do regular nouns form their plural?

A regular noun forms the plural by adding an 's' or an 'es' to the end of the word. Nouns that form the plural in some other way are called irregular plural nouns. Examples of regular plural nouns: apple, apples church, churches friend, friends Examples of irregular plural nouns are: child, children medium, media tooth, teeth

Related questions

How do regular nouns form their plural?

A regular noun forms the plural by adding an 's' or an 'es' to the end of the word. Nouns that form the plural in some other way are called irregular plural nouns. Examples of regular plural nouns: apple, apples church, churches friend, friends Examples of irregular plural nouns are: child, children medium, media tooth, teeth


What are some examples of irregular pronouns?

Some examples of irregular pronouns include "I" (subjective form), "me" (objective form), "you" (subjective and objective form), and "it" (subjective and objective form). These pronouns do not follow the typical pattern of regular pronouns in terms of their forms.


What are the two nouns that behave irreguarly?

The two nouns that behave irregularly in English are "child" (plural: children) and "ox" (plural: oxen). These nouns have unique forms for their plural versions that do not follow the typical rules for forming plurals in English.


Do Some irregular nouns change their vowel sound to form the plural?

Yes, some irregular nouns change their vowel sound to form the plural. For example, "man" becomes "men" and "foot" becomes "feet."


Is there a term for defining nouns that do not add s or es to make them plural?

Yes, nouns that are made plural b adding 's' or 'es' are called regular nouns; nouns made plural by some other form are called irregular nouns.


Is it true Some irregular nouns change their vowel sound to form the plural?

Yes, some irregular nouns change their vowel sound to form the plural. For example, "man" becomes "men" and "foot" becomes "feet." These changes are not consistent and must be memorized.


What is a irregular plural possessive noun?

An irregular plural possessive noun is a noun that is both plural and possessive in form, but does not follow the usual rule of adding an apostrophe-s ('s) to show possession. For example, "children's" is an irregular plural possessive noun because "children" is already plural but to show possession, only an apostrophe is added (children').


Do all plurals end in s?

No, nouns that do not form their plural by adding 's' of 'es' to the end of the word are called irregular plural nouns.Examples of irregular plural nouns that do not end in 's' are:child -> childrenfoot -> feetman -> menmedium -> mediagoose -> geeseox -> oxentooth -> teeth


What is the term for words that are the same singular and plural?

The term for words that are the same in both singular and plural forms is "unchanged plural." Examples include "sheep," "deer," and "fish."


What is the spelling rule for changing singular words to plural?

Nouns are made plural by adding -s or -es to form the plural, they are called regular plurals; nouns using another form for the plural are called irregular plurals. Some examples of irregular plurals are:child- childrenwoman- womentooth- teethmouse- miceknife- knivesoasis- oasesgoose- geesecactus- cacti


What are irregular plural nouns?

Irregular plural nouns are nouns that do not follow the typical pattern of adding "-s" or "-es" to form their plural form. Examples include words like "child" (plural: children) and "sheep" (plural: sheep).


Is it true that some irregular nouns change their vowel sound to form the plural?

Yes, some irregular nouns change their vowel sound when forming the plural. For example, the noun "man" becomes "men" when pluralized. This is a common phenomenon in English language morphology.