A clause consists of more than one word so while cannot be a subordinate clause.
While can be a subordinating conjunction:
While I like mussels I hate oysters.
While they were dancing someone took a photograph. (while clause)
In the sentence, "Dolly must clean up her room before she goes out," the word that begins the subordinate clause is before. The subordinate clause is "before she goes out."
There isn't a difference between a subordinate clause and a subordinate clause.
Subordinate clauseA subordinate (or dependent) clause is a clause that needs another clause. Unlike independent clauses it cannot stand alone. The word because is usually a good indicator of a subordinate clause.
Although there are many subordinate conjunctions, the most common are "and", "but", and "or". A subordinate conjunction connects a subordinate clause (a clause that cannot stand alone as a sentence) to a main clause (a complete sentence).
The subordinate clause in your sentence begins with the word before.
Yes, a comma is generally needed when a subordinate clause begins with a subordinate conjunction. The comma is used to separate the subordinate clause from the main clause.
"After the bridge collapsed" is the subordinate clause. It begins with "after", a subordinate conjunction, and it cannot stand alone as a sentence. A subordinate clause is also called a dependent clause.
An insubordinate clause is just another word for an Independent clause. A subordinate clause is just another word for a Dependent clause. An Independent clause is a sentence that can stand by itself and a dependent clause can't stand by itself.
No... Subordinate conjunctions (i.e. if, because, although, while, when, et cetera) begin subordinate clauses, at least when those subordinate clauses function as adverbs...
A subordinating conjunction begins a subordinate clause. It connects the subordinate clause to the main clause and shows the relationship between the two. Examples of subordinating conjunctions include "although," "because," and "if."
If you have the subordinate clause before the main clause, you write a comma. However, the rules are a bit different for relative pronouns connecting main and subordinate clause.
If you have the subordinate clause before the main clause, you write a comma. However, the rules are a bit different for relative pronouns connecting main and subordinate clause.