* Independent clause: This is a complete sentence that can stand alone, containing a subject and a verb. Example: "The cat sat on the mat."
* Subordinate clause: This is a clause that cannot stand alone as a complete sentence. It relies on an independent clause for its meaning. It usually begins with a subordinating conjunction like "because," "although," "when," etc. Example: "Because the cat was hungry."
So, a "subordinate independent clause" doesn't really exist in grammatical terms. It's like saying "a square circle."
What you might be thinking of:
* Subordinate clause within an independent clause: This is very common. You have a complete sentence (independent clause) and within it, you have a dependent clause that provides more information.
* Example: "The cat sat on the mat because he was hungry." (The bold part is the subordinate clause)
* Complex sentence: This type of sentence contains one independent clause and at least one dependent clause.
* Example: "Although it was raining (dependent clause), the cat went outside (independent clause)."
In summary: While there's no such thing as a "subordinate independent clause," there are clauses that are subordinate to an independent clause, which often occur within a complex sentence.