Irregular Plurals
There are two types of irregular plurals:
- Words that don’t change.
- Words that don’t follow plural spelling rules.
Words That Don’t Change
These words are the same in the singular and plural form.
| Singular (1) | Plural (2+) |
|---|---|
| aircraft | aircraft |
| deer | deer |
| fish | fish |
| moose | moose |
| offspring | offspring |
| sheep | sheep |
| species | species |
| salmon | salmon |
| trout | trout |
Words With the Same Singular and Plural Forms
Many of these words refer to animals. A lot of fish names also follow this pattern.
Words That Don’t Follow Plural Spelling Rules
| Singular (1) | Plural (2+) | child| children | die| dice | foot| feet | goose| geese | louse| lice | man| men | mouse| mice | ox| oxen | person| people | tooth| teeth | woman| women
Irregular Plurals
Many compound words that end with an irregular plural follow the same pattern.
| Singular (1) | Plural (2+) |
|---|---|
| workman | workmen |
| schoolchild | Schoolchildren |
Irregular Plurals
Learn the spelling rules for regular plurals.
Learn more about using plurals.