Rule Two.
Rule 2 - If a singular noun ends in y with a consonant before it, make the plural by changing y to i and add es
The vowels are a, e, i, o, u. all the other letters are consonants.
Examples :
| Singular | Plural | Singular | Plural |
|---|---|---|---|
| baby | babies | mystery | mysteries |
| body | bodies | industry | industies |
| company | companies | family | families |
| century | centuries | army | armies |