Here is a worksheet on plural nouns (es vs. s):
Plural Nouns: es vs. s
Instructions: Fill in the blanks with the correct form of the plural noun (add -s or -es).
1. cat – _______ (cats or cates?)
Answer: cats
2. tooth – _______ (teeth or tooths?)
Answer: teeth
3. bus – _______ (buses or buse?)
Answer: buses
4. focus – _______ (foci or focuses?)
Answer: foci
5. address – _______ (addresses or addresse?)
Answer: addresses
6. crisis – _______ (crises or crisi?)
Answer: crises
7. basis – _______ (bases or basi?)
Answer: bases
8. crisis – _______ (crises or crisis?)
Answer: crises
9. hypothesis – _______ (hypotheses or hypotese?)
Answer: hypotheses
10. crisis – _______ (crises or crisis?)
Answer: crises
Additional Practice:
1. Change the following nouns to their plural form:
* child
* radius
* freedom
* basis
* crisis
* focus
* hypothesis
2. Write the plural form of the following nouns that already have an "-s" or "-es" ending:
* blessing
* trespass
* crisis
Answers:
1. child – children
2. radius – radii
3. freedom – freedoms
4. basis – bases
5. crisis – crises
6. focus – focuses
7. hypothesis – hypotheses
Additional Tips:
* Most nouns that end in -s, -x, -z, -sh, -ch, -t, or -d add -es to form the plural.
* Nouns that end in -is, -is, -anus, or -on usually add -es to form the plural.
* Some nouns, like those that come from ancient languages or have irregular plural forms, may have different plural forms.
I hope this worksheet helps your students practice their plural nouns!
