In English, forming the singular and plural of nouns generally follows specific rules. Here’s a breakdown: Singular and Plural Forms 1. Regular Nouns - Singular: Add -s to the singular form to make it plural.   - Example:     - Singular: cat     - Plural: cats 2. Nouns Ending in -s, -x, -z, -sh, -ch - Plural: Add -es.   - Example:     - Singular: bus     - Plural: buses 3. Nouns Ending in a Consonant + -y - Plural: Change the -y to -ies.   - Example:     - Singular: baby     - Plural: babies 4. Nouns Ending in a Vowel + -y - Plural: Just add -s.   - Example:     - Singular: key     - Plural: keys 5. Nouns Ending in -fo or -o - Plural: Usually add -s or -es (depends on the noun).   - Example:     - Singular: photo → Plural: photos     - Singular: potato → Plural: potatoes 6. Irregular Nouns Some nouns do not follow regular rules and have unique plural forms.   - Examples:     - Singular: man → Plural: men     - Singular: woman → Plural: women     - Singular: child → Plural: children     - Singular: tooth → Plural: teeth Summary Table | Singular | Plural   | |--------------|--------------| | cat          | cats         | | bus          | buses        | | baby         | babies       | | key          | keys         | | photo        | photos       | | man          | men          | | child        | children      | @somalienglishcollege