Irregular plural nouns

Topic:  Irregular Plural nouns
What are irregular plural nouns?
An irregular noun is a noun that becomes plural by changing
its spelling in other ways than adding an “s” or “es” to the
end of the word.
This diagram shows how all nouns pluralize, pay attention to
the way regular nouns are pluralized and how irregular nouns
pluralize.

The video below will help you understand further

Activity
Write the plural of the following words and write whether they
are regular or irregular plural nouns.
1. Word ________________    ______________________
2. Boy ________________    ______________________
3. Sheep   ________________    ______________________
4. Bag  ________________    ______________________
5. Woman ________________    ______________________
6. Leaf  ________________    ______________________
7. Door  ________________    ______________________
8. Tree  ________________    ______________________
9. Ox ________________    ______________________
10. Tooth  ________________    ______________________
11. Person  ________________    ______________________