Prepositional phrases that begin with after are adverb phrases:
e.g. "The nebula formed after a supernova" meaning the nebula formed afterward.
If the phrase describes (modifies) a noun or pronoun, it's an adjective phrase. If the phrase describes a verb, adjective, or adverb, it's an adverb phrase.
It is an adverb phrase (tells where).
Adverb phrase
adverb phrase
Yes, you can have a sentence without a adjetive or adverb phrase. For example, Her name is Sally. No adverb or adjetive!
It is an adverb phrase, although in forms such as "The period after a supernova is marked by stellar collapse" it seems to be an adjective phrase.
Adverb: "A black hole forms when a supermassive star collapses after a supernova explosion."
"after a supernova" is the adverb phrase in the sentence.
If the phrase describes (modifies) a noun or pronoun, it's an adjective phrase. If the phrase describes a verb, adjective, or adverb, it's an adverb phrase.
Adverb Phrase
adverb phrase
an adjective phrase acts like an adjective and modifies the noun or pronoun in the sentence. an adverb phrase acts like an adverb and modifies the verb, adjective, or adverb in the sentence.
It is an adverb phrase (tells where).
adjective phrase
adverb
adverb phrase
Prepositional phrases that begin with after are adverb phrases: e.g. "The nebula formed after a supernova" meaning the nebula formed afterward.