Singular-Plural Nouns - ESL worksheet by matetmontemor1122 - Free Printable

Let's solve the "Singular to Plural: Irregulars" worksheet step by step. The task is to write the plural form of each irregular noun listed.

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🔹 Irregular Nouns and Their Plurals

Here are the correct plural forms for each word:

1. calf → calves
*(Change 'f' to 'v' and add 'es')*

2. knife → knives
*(Change 'f' to 'v' and add 'es')*

3. person → people
*(Not "persons" in common usage; "people" is the standard plural)*

4. tooth → teeth
*(Irregular change: 'th' becomes 'ee')*

5. wife → wives
*(Change 'f' to 'v' and add 'es')*

6. elf → elves
*(Change 'f' to 'v' and add 'es')*

7. oasis → oases
*(Greek-derived word; add 'es')*

8. woman → women
*(Irregular change: 'o' becomes 'e', 'n' becomes 'en')*

9. mouse → mice
*(Irregular: 'ouse' becomes 'ice')*

10. leaf → leaves
*(Change 'f' to 'v' and add 'es')*

11. child → children
*(Irregular: adds 'ren' instead of regular plural rule)*

12. goose → geese
*(Irregular: 'oo' becomes 'ee')*

13. fireman → firemen
*(Regular plural with '-men'; note: "firefighter" is more modern, but "firemen" is still accepted)*

14. wolf → wolves
*(Change 'f' to 'v' and add 'es')*

15. datum → data
*(Latin origin; plural is "data")*

16. baby → babies
*(Add '-ies' after 'y' when preceded by consonant)*

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✔ Final Answer Key:

1. calves
2. knives
3. people
4. teeth
5. wives
6. elves
7. oases
8. women
9. mice
10. leaves
11. children
12. geese
13. firemen
14. wolves
15. data
16. babies

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📝 Notes:

- Many of these follow patterns like f → v + es, such as knife → knives.
- Some are completely irregular (like child → children).
- Words from Latin or Greek often have unique plurals (e.g., datum → data, oasis → oases).

This exercise helps build vocabulary and understanding of English irregular plural rules, which are essential for grammar mastery.

Let me know if you'd like a printable version or explanation of any specific word!