Regular and Irregular Plural Nouns

Most nouns in English have both singular and plural forms, and the
plural is usually formed by adding "-s" to the singular. Most nouns in
English have both singular and plural forms, and the plural is usually
formed by adding “-s” to the singular. This page explains the basic
ways of forming regular plurals in English. For information about
forming irregular plurals see IrrEgular Plurals of Nouns.

How to form the plural
Noun ending Forming the plural Example

s, x, ch or sh	Add -es	boss bosses tax taxes bush bushes
consonant + y	Change y to i then add -es	baby babies candy candies curry curries
most others	Add -s	cat cats face faces day days

Try this:

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/plural1.htm

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/plural2.htm

 

 

Although most nouns have plurals formed according to regular rules (see Regular Plurals of Nouns), some nouns have unusual, or irregular plurals. This page will introduce the most common ones, so that you can learn them.

Types of irregular plural


There are many types of irregular plural, but these are the most common:

<>Noun type Forming the plural Example

Ends with -fe	Change f to v then Add -s	knife knives life lives wife wives
Ends with -f	Change f to v then Add -es	half halves wolf wolves loaf loaves
Ends with -o	Add -es	potato potatoes tomato tomatoes volcano volcanoes
ends with -us	Change -us to -i	cactus cacti nucleus nuclei focus foci
ends with -is	Change -is to -es	analysis analyses crisis crises thesis theses
ends with -on	Change -on to -a	phenomenon phenomena criterion criteria
ALL KINDS	Change the vowel or Change the word or Add a different ending	man men foot feet child children person people tooth teeth mouse mice
Unchanging	Singular and plural are the same	sheep deer fish (sometimes)

Try This:

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/irrplu1.htm

http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/irrplu2.htm

 

_________________