What does a noun do in a sentence?
It acts as the subject of a sentence that performs the action of the verb. The subject has to be a noun. It cannot be a verb, an adverb, an adjective or any other part of speech. Nouns are basic to sentence structure because they, along with pronouns, provide the subject of the sentence. In addition, a noun functions as a direct object of a verb, an indirect object of a verb, object of a preposition, or a complement.
(2) Noun as direct object
The direct object (in bold) is a noun in a sentence. The object is acted upon by the subject, and It typically comes after the verb.
(3) Noun as indirect object
The indirect object (in bold) is a noun in a sentence. An indirect object represents a person or thing that receives the effect of the action of the verb. It usually comes between the verb and the direct object.
(4) Noun as object of a preposition
The object of preposition (in bold) is a noun in a sentence. The object comes after the preposition as shown here in following examples.