Nouns
In a sentence, nouns can play the role of subject, direct object , indirect object, subject complement, object complement, appositive, or modifier (name of: person, places, things, animals).
Countable nouns: nouns that can be counted, nouns can be singular or plural and can be used with numbers and modifiers like a/an, the, some, any, a few, and many: Here is a cat / hera are a few cats / here are eight cats.
Uncountable nouns: are impossible to count, they name intangible concepts, most of these nouns are singular: information, wealth, collections, milk, sand, air, Ex: They´d love to rent some property around here / Students don´t seen to have much homework these days.
Nouns and the possessive case: The possessive case shows the relationship of a noun to other words in a sentence, by adding an apostrophe and the letter s: The cat´s toy was missing / Csey´s sister is a geologist.