Irregular Plural Nouns Worksheets - 15 Worksheets Library - Free Printable

The task is to write the plural form of each singular noun listed. Below are the solutions with explanations for each:

1. ox

- Plural: oxen
- Explanation: "Ox" follows an irregular plural rule where the ending changes from "-x" to "-en."

2. dwarf

- Plural: dwarves
- Explanation: "Dwarf" follows an irregular plural rule where the ending changes from "-f" to "-ves."

3. fungus

- Plural: fungi
- Explanation: "Fungus" is a Latin-based word that follows the plural rule of changing "-us" to "-i."

4. focus

- Plural: foci
- Explanation: "Focus" is another Latin-based word that follows the plural rule of changing "-us" to "-i."

5. quiz

- Plural: quizzes
- Explanation: "Quiz" follows the regular plural rule by adding "-es" because it ends in "-z."

6. thief

- Plural: thieves
- Explanation: "Thief" follows an irregular plural rule where the ending changes from "-f" to "-ves."

7. wife

- Plural: wives
- Explanation: "Wife" follows an irregular plural rule where the ending changes from "-fe" to "-ves."

8. tuna

- Plural: tuna
- Explanation: "Tuna" is a mass noun and does not change its form in the plural.

9. trout

- Plural: trout
- Explanation: "Trout" is a mass noun and does not change its form in the plural.

10. moose

- Plural: moose
- Explanation: "Moose" is a mass noun and does not change its form in the plural.

11. wharf

- Plural: wharfs or wharves
- Explanation: "Wharf" can have two plural forms: "wharfs" (regular) or "wharves" (irregular).

12. thesis

- Plural: theses
- Explanation: "Thesis" is a Greek-based word that follows the plural rule of changing "-sis" to "-ses."

13. man

- Plural: men
- Explanation: "Man" follows an irregular plural rule where the ending changes from "-an" to "-en."

14. goose

- Plural: geese
- Explanation: "Goose" follows an irregular plural rule where the ending changes from "-oose" to "-eese."

15. salmon

- Plural: salmon
- Explanation: "Salmon" is a mass noun and does not change its form in the plural.

16. shrimp

- Plural: shrimp
- Explanation: "Shrimp" is a mass noun and does not change its form in the plural.

17. self

- Plural: selves
- Explanation: "Self" follows an irregular plural rule where the ending changes from "-lf" to "-lves."

18. larva

- Plural: larvae
- Explanation: "Larva" is a Latin-based word that follows the plural rule of changing "-a" to "-ae."

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Final Answer:

1. ox → oxen
2. dwarf → dwarves
3. fungus → fungi
4. focus → foci
5. quiz → quizzes
6. thief → thieves
7. wife → wives
8. tuna → tuna
9. trout → trout
10. moose → moose
11. wharf → wharfs or wharves
12. thesis → theses
13. man → men
14. goose → geese
15. salmon → salmon
16. shrimp → shrimp
17. self → selves
18. larva → larvae

$$
\boxed{
\text{oxen, dwarves, fungi, foci, quizzes, thieves, wives, tuna, trout, moose, wharfs/wharves, theses, men, geese, salmon, shrimp, selves, larvae}
}
$$