There are two types of plural noun forms, regular nouns and irregular nouns.
A regular plural is a word that forms the plural by adding an -s or an -es to the end of the word.
An irregular plural is a word that forms the plural in some other way.
Examples of regular plural nouns:
apple: apples
box: boxes
church: churches
dog: dogs
egg: eggs
glass: glasses
Examples or irregular plural nouns:
baby: babies (nouns ending in -y preceded by a consonant, change the -y to -ies)
lady: ladies
calf: calves (nouns ending in -f or -fe, but not -ff or -ffe, change the -f or -fe to -ves)
wife: wives
hero: heroes (some nouns ending in -o add -es, some do not)
tomato: tomatoes
man: men (words from various origin languages that inherited differing plural forms)
child: children
foot: feet
tooth: teeth
mouse: mice
crisis: crises
parenthesis: parentheses
fungus: fungi
radius: radii
antenna: antennae
larva: larvae
gymnasium: gymnasia
datum: data
There are several more variations and most of the rules cited above have exceptions. Some of the plural forms inherited from other languages are now alternating with regular plural form, that both plural forms are accepted. If you are in doubt of a plural form, always consult a dictionary.
In most cases, an "s" is added to the end of the word, although sometimes "es" must be added. There are also some scattered words with their own way of forming plural nouns. But in general, add "s" like this: bike, bikes. Cat, cats.
The normal rule is to add an -s to the word eg one book, two books. But there are many exceptions: Words ending in -ss, -tch, -sh,etc require -es in the plural eg one glass, two glasses Words ending in -o (if English) require -es eg one potato, two potatoes Words ending in -o (if Italian) require only -s eg one piano, two pianos Words ending in -dy,-ry,-ty,etc require the -y to be replaced by -ies eg one city, two cities Some words change as well as requiring final -s eg one knife, two knives Some words do not require the final -s or -es in the plural eg one deer, two deer Words ending in -ies do not change in the plural eg one series, two series Some Latin and Greek words use Latin and Greek plurals eg one formula, two formulae or one criterion, two criteria
Question rephrased: What changes are MADE (passive voice), or what changes can YOU make (active voice).
Look at your question, you've used two plural nouns: changes and nouns.
The usual form to make a singular noun into a plural noun is by adding an -s or -es to the end of the word. This is called a 'regular noun' or 'regular plural', for example:
All other changes to make a singular noun into a plural noun are called 'irregular nouns' or 'irregular plurals'. There is a number of variations.
See the link below for a list of these variation with examples:
Most nouns are made plural by adding an -S to the end of the word, as in noun/nouns or word/words.
Here are the exceptions to the rule:
There are also a bunch of oddball nouns that you just have to memorize, like if it ends in -us you change the -us to -I (alumnus/alumni) or changing child to children.
There are different rules for pluralizing different words.
The plural form of the noun 'pizza' is pizzas.Pizzas in English, pizze in Italian, where most nouns ending in "a" (feminine) are pluralized by changing it to an "e" (signora/signore, ragazza/ragazze, etc.).
The words fruits when pluralized is correct not incorrect.
In most cases, names are pluralized using the same rules as common nouns. For example, Bellini, simply add 's' making it the Bellinis.
Yes, Mama Helen's, not Mama Helens. Mama Helens in pluralized.
A plural noun is a word for more than one person, place, or thing. Here are some rules to make singular nouns into plural nouns:To make most nouns plural, add an s to the end of the word. The plural of flower is flowers.Nouns ending in s, z, ch, sh, or x, add es to the end of the word to make it plural. The plural of dish is dishes.Some nouns ending with o are pluralized by adding and es to the end of the word. The plural of tomato is tomatoes.Most nouns ending with o are pluralized by adding s to the end of the word. The plural of photo is photos.When a noun ends in a y, change the y at the end of the word to an ies. The plural of berry is berries.Some nouns ending with y, preceded by a vowel, are pluralized by just adding s to the end of the word. The plural of dayis days.Nouns ending with f or fe, change to f or the fe to ves to form the plural. The plural of life is lives.Nouns ending with ff are usually pluralized by just adding an s to the end of the word. The plural of cuff is cuffs.Some nouns change the vowel sound to become plural. The plural of man is men, the plural of tooth is teeth.Some Old English plurals are still in use. The plural of child is children, the plural of ox is oxen.Some nouns that end with is, the ending is changed to es to form the plural. The plural of crisis is crises.Some nouns that end with um, the um is replaced with an a. The plural for datum is data, the plural for medium is media.Some nouns that end with on, the on is replaced with an a. The plural of phenomenon is phenomena.Some nouns that end is a, change the a at the end of the word to ae. The plural of larva is larvae.Some nouns that end in ex or ix, the plural is formed by changing the x to ces. The plural of index is indeces, the plural of matrix is matrices.Some nouns that end in us, the plural is formed by changing the us to i. The plural of cactus is cacti, the plural of radius is radii.Nouns ending in eau, the plural is formed by adding x to the end of the word. The plural of bureau is bureaux.There are any number of other variations such as the plural of tempo is tempi; the plural of cherub is cherubim; the plural of person is people. But language evolves over time or we would still be speaking like Shakespeare. Even as I type these rules, some are officially amended. For example, the plural forms indeces and indexes are both being accepted as correct plurals for index and the plural forms bureaux and bureaus are both being accepted as correct plurals for bureau, as are many other irregular plurals being found in standard dictionaries with modernized plural options.
i dont know man
Nouns are usually made plural by adding the letter s to the end of the word.
plural nouns are nouns that tell a person place thing or idea
Goose to geese Mouse to mice Person to people
Most nouns ending in -o are pluralized by simply adding -s, except:Some nouns ending in the letter -oare pluralized by adding -es. These words must be memorized, because there is no simple rule to explain the differences.echo, echoeshero, heroespotato, potatoestorpedo, torpedoesveto, vetoes
Nouns ending in -z (as well as -s, -sh, -ch, and -x) are pluralized by adding -es to the end of the word, for example:buzz; buzzeschintz; chintzesquiz; quizzes
Nouns that end in -b are pluralized by simply adding -s, e.g:bomb - bombstomb - tombsweb - webshob - hobs
Memoranda. Memo is short for memorandum, and many words ending -um are pluralized with an -a following the rules for neuter gendered nouns in Latin.
'Bellissima' pluralized in Italian is 'bellissime.'
yeah
The plural form of the noun 'pizza' is pizzas.Pizzas in English, pizze in Italian, where most nouns ending in "a" (feminine) are pluralized by changing it to an "e" (signora/signore, ragazza/ragazze, etc.).
Roosevelt, the proper noun, is pluralized as Roosevelts. The regular noun, roosevelt, would be pluralized as roosevi.