A. Nouns have concrete and abstract forms.
• Concrete nouns name persons, places, or things that can be seen, heard, smelled, tasted or touched.
Examples: car, radio, apple, tree
You may find a, an, or the before concrete nouns.
• Abstract nouns name intangible things that cannot be seen or touched such as qualities, feelings and ideas.
Examples: bravery, happiness, justice
B. Some nouns are collective.
• A collective noun names a group of persons, animals, or things considered as one.
Examples: group, class, committee, flock, nation
C. Nouns can be proper or common.
• Proper noun names a particular person, place or thing. It usually starts with a capital letter.
Examples: James Yap, Peter June Simon, Jean Marc Pingris, San MigSuper Coffee Mixers
D. Nouns form their plurals in different ways.
• Most nouns form their plural by adding –s.
Examples: boy-boys
horse-horses
bag-bags
• Nouns ending in –s, -ss, -z, -ch, -shand –x form their plural forms by changing –f or –fe to –ves.
Examples: knife-knives
leaf-leaves
Some exceptions are: roof-roofschef-chefs
• Nouns ending in –y preceded by a consonant form their plural by changing –y to –i and adding –es.
Examples:city-cities
lily-lilies
baby-babies
• Nouns ending in –y preceded by a vowel form their plural by adding –s.
Examples: key-keys
toy-toys
boy-boys
• Some nouns ending in –opreceded by a consonant form their plural by adding –es.
Examples: potato-potatoes
mango-mangoes
tomato-tomatoes
• Other nouns ending in –opreceded by a vowel form their plural by adding –s.
Examples: radio-radiosigloo-igloos
• Some nouns form their plural form by changing the whole spelling.
Examples: tooth-teeth
goose-geese
man-men
• The following nouns have the same form in their plural.
Examples: deer-deer
sheep-sheep
salmon-salmon
• Some foreign nouns form their plural as in the original language.
Examples: cactus-cactidata-datum
alumnus-alumni