No. It's an adjective.
The word that introduces a prepositional phrase is a preposition.
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."
Yes
No. Was is a verb.
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, the word "yesterday" is not a prepositional phrase. It is an adverb that refers to the day before today. Prepositional phrases consist of a preposition and a noun or pronoun that functions as its object.
Generally, the last word of a prepositional phrase is the "object of the preposition."
No.
Yes
no its not!
The word through is a preposition, an object of the preposition is needed to create a prepositional phrase.Example: He hit the ball through a window.the word 'through' is the preposition;the word 'window' is the object of the preposition;'through the window' is a prepositional phrase.
Yes you can. By usually indicated a prepositional phrase. Ex. By in large, most companies are opting out of a holiday party this year.