The word that introduces a prepositional phrase is a preposition.
If a preposition does not have an object, it is not a preposition. It is an adjective, adverb, or possibly a conjunction.
It is neither. The word 'from' is a preposition. Example:We have a question from an interested student.The preposition 'from' introduces the prepositional phrase 'from an interested student'; a prepositional phrase tells something more about a noun in the sentence. In this sentence, the prepositional phrase tells more about the noun question (the origin of the question).
Yes, the word "by" is a prepositional phrase. No, the word "by" is a preposition; a prepositional phrase including the word "by" would be "... by the wayside."
I'm not sure if your question is whether a prepositional phrase is the same thing as a word group, or if "group" is a prepositional phrase. The answer is no in either case. A word group must express a complete thought. A prepositional phrase is part of a sentence and it has to start with a preposition. "In the group" is a prepositional phrase beginning with the preposition "in."
No. "By" is a preposition, but it is not a phrase.
No. "By" is a preposition, but it is not a phrase.
A prepositional phrase contains more than one word and is introduce by a preposition, which your is not.
Generally, the last word of a prepositional phrase is the "object of the preposition."
no its not!
No.
No. Into is a word. It is a preposition. A phrase is more than one word, so a prepositional phrase will have more than one word eg into the woods.
No beneath is a proposition. A phrase is two or three words not one word. beneath the waves - is a prepositional phrase.