Yes, it is. It can also function as a preposition in elliptical forms (e.g. It has been two days since Easter.)
"Since" is a subordinating conjunction, which introduces a dependent clause that gives the reason for the action in the main clause.
"If" is not a conjunction; it is a subordinating conjunction that introduces a conditional clause.
No, "with" is a preposition, not a subordinating conjunction. Subordinating conjunctions introduce dependent clauses in a sentence.
"Whenever" is a subordinating conjunction, linking a dependent clause to an independent clause in a complex sentence.
The subordinating conjunction in the sentence is "before."
No, "since" is a subordinating conjunction, not an interjection.
"Since" is a subordinating conjunction, which introduces a dependent clause that gives the reason for the action in the main clause.
"If" is not a conjunction; it is a subordinating conjunction that introduces a conditional clause.
I will do what you say since I am your subordinate. He was a private and subordinate to the captain.
Since is an adverb, preposition or a conjunction As an adverb - she at first refused, but has since consented... As a preposition - It has been warm since noon'... As a conjunction - He has been busy since he came...
No, "with" is a preposition, not a subordinating conjunction. Subordinating conjunctions introduce dependent clauses in a sentence.
no, it is not.
"Whenever" is a subordinating conjunction, linking a dependent clause to an independent clause in a complex sentence.
No, because is a subordinating conjunction.
The conjunction when is a subordinating conjunction, a subordinating conjunction joins a subordinate (dependent) clause to a main (independent) clause. For example:Jane went running when it was raining.
The subordinating conjunction in the sentence is "before."
The subordinating conjunction in the sentence is "before".