Final answer:
The rule for changing a singular noun to its plural form depends on the spelling of the singular noun. Some common rules include adding -es, -ies, or -s to the singular noun.
Step-by-step explanation:
The rule for changing a singular noun to its plural form depends on the spelling of the singular noun. Here are some common rules:
- If the singular noun ends in -s, -x, -z, -ch, or -sh, add -es to form the plural. For example: dish - dishes, box - boxes, buzz - buzzes
- If the singular noun ends in a consonant plus -y, change the -y to -ies to form the plural. For example: baby - babies, city - cities
- If the singular noun ends in a vowel plus -y, simply add -s to form the plural. For example: boy - boys, key - keys
- For most other singular nouns, simply add -s to form the plural. For example: book - books, car - carcars