What is the difference between an adverb prepositional phrase and an adjective prepositional phrase?
Answer
A preposition is a part of speech, or word, that modifies other parts of speech and is part of a phrase that ends with a noun called the object of the preposition. Prepositions must always be followed by the object of the preposition.
A phrase that begins with a preposition and ends with the object of the preposition is called a prepositional phrase.
Examples of prepositional phrases:
I found the dog in the backyard.
For the rest of the day, I want you to rest.
The brown book on the shelf is over two-hundred years old.
The student with the purple hair was absent today.
There are two kinds of prepositional phrases: adjective phrases and adverb phrases.
An adjective phrase is a prepositional phrase that acts as an adjective does: It modifies or describes a noun.
Examples:
The brown book on the shelf is over two-hundred years old.
The student with the purple hair was absent today.
Each of the adjective phrases describes the noun that precedes it by answering the question, "WHICH book? WHICH student?"
An adverb phrase is a prepositional phrase that acts as an adverb does: It modifies a verb, adjective, or adverb by expressing a relation of place, time, circumstance, manner, cause, degree, or more.
Examples:
I found the dog in the backyard.
For the rest of the day, I want you to rest.
The first example's adverb phrase answers the question, "You found the dog WHERE?" The second example's adverb phrase answers the question, "You want me to rest FOR HOW LONG/TO WHAT EXTENT?"
If you require further assistance with understanding the difference between adjective phrases and adverb phrases, you can watch the video in the provided link.