go back in time
Yes, it is a phrase that indicates time. It will be an adverbial phrase.
Yes, "in time" is an adverbial prepositional phrase.
To make it into a phrase you really should be using quotation marks: "for the last time" is a phrase.
Which phrase defines the time called prehistory
Yes. It is a prepositional phrase used as an adverb (answers when).
The phrase "all the time" has three syllables. The syllables in the phrase are all-the-time.
The phrase frozen in time means has not/hasn't been touched for centuries.
"At that time" is the prepositional phrase.
"At that time" is the prepositional phrase.
"Short on time" is the correct phrase. It means lacking sufficient time for a particular task or activity.
go back in time
Infinitive phrase.