Irregular Plural Nouns worksheet for matching singular nouns to their plural forms.

Let’s solve this step by step.

We are matching singular nouns to their correct irregular plural forms. Irregular plurals don’t just add “-s” — they change in special ways.

Here’s the list of singular nouns on the left:
- knife
- shelf
- story
- baby
- fly
- wish
- tooth

And the plural options on the right:
- babies
- stories
- flies
- wishes
- knives
- teeth
- shelves

Now, let’s match them one by one:

1. knife → The plural is knives (change “f” to “v” and add “es”)
2. shelf → The plural is shelves (same rule: “f” to “v” + “es”)
3. story → Ends in “y” after a consonant → change “y” to “i” and add “es” → stories
4. baby → Same rule: “y” after consonant → babies
5. fly → Also ends in “y” after consonant → flies
6. wish → Add “es” because it ends in “sh” → wishes
7. tooth → This is very irregular → plural is teeth

So now we pair them up correctly:

- knife → knives
- shelf → shelves
- story → stories
- baby → babies
- fly → flies
- wish → wishes
- tooth → teeth

All matches are now complete and verified.

Final Answer:
knife – knives
shelf – shelves
story – stories
baby – babies
fly – flies
wish – wishes
tooth – teeth