In the English language, a singular noun usually changes to form the plural.
A regular plural refers to a noun that adds an "s" at the end of it.
For example, the word "dog" changes to "dogs"
An irregular plural refers to a noun that does not add "s" at the end of it. Irregular plurals either stay the same as the singular form, or change their spelling for the plural. These plurals must be memorized.
Click on the activity below to review and practice regular and irregular plural nouns.