Yes, "in time" is an adverbial prepositional phrase.
"At that time" is the prepositional phrase.
"At that time" is the prepositional phrase.
Yes. It is a prepositional phrase used as an adverb (answers when).
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Yes, it is a phrase that indicates time. It will be an adverbial phrase.
Yes, "in an environment" is a prepositional phrase. It begins with the preposition "in" and includes the noun phrase "an environment." Prepositional phrases provide more information about location or time.
Each year is NOT a prepositional phrase. Believe it or not, each is an adjective. Each is describing year.
The prepositional phrase is in the park. Camping is not part of the prepositional phrase.
No, "in the summer" would be a prepositional phrase.
In the wind is the prepositional phrase.
A prepositional phrase that modifies a noun or pronoun is an adjective prepositional phrase. An adjective prepositional phrase almost always follows the noun/pronoun it modifies.
Yes. It is a prepositional phrase, used as an adverb.