prepositional+phrase

In simplest terms, prepositional phrases consist of a preposition and an object of a preposition. Prepositions are indeclinable words that introduce the object of a prepositional phrase. Indeclinable words are words that have only one possible form. For example, //below// is a preposition, but //belows// or //belowing// are not possible forms of below. The noun phrase or pronoun that follows the preposition is called the object of the preposition. For example, //behind the couch// is a prepositional phrase where //behind// is the preposition and the noun phrase //the couch// acts as the object of the preposition. Sometimes adjectives are used to further modify the object of the preposition, as in //behind the big old smelly green couch.//

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