That's it exactly.
I assume I have understood your question properly. Let's dig deep with the help of an example:
"He knows that a good time is on the way".
Sentence Structure:
He -> subject of the main clause.
Knows -> main verb of the main clause.
That a good time is on the way -> dependent clause, in which "a good time" -> subject, "is" -> linking verb, "on the way" -> prepositional phrase acting as an object of the verb "is" and modifying "time".
That -> expletive that introduces a sentence: "a good time is on the way."
Now let's go back to your question:
1- The word "that" is introducing a sentence.
2- Yes, this introductory word "that" can be treated as an expletive.
BUT be careful. In the below sentence that word "that" is used as a relative pronoun and can not be treated as an expletive. Rather, it is the subject of the dependent clause.
He knows the men that can kill the Governor.
Sure, I can use a conjunction like 'while' or 'although' to introduce an adverbial clause that provides additional information about an action or situation. Let me know if you would like me to demonstrate it with an example sentence.
No, it is not a conjunction. It is a pronoun, like who. It can introduce a noun clause (e.g. whoever we choose).
well, at least after expression words like yes, no, well, oh, and so on... Oh, and when you say multiple things like I did over
To separate an introductory phrase from the main clause, as in "After the meeting, we went out for lunch." To set off introductory words or adverbs at the beginning of a sentence, such as "However, I disagree with your assessment." To add clarity by signaling the beginning of the main idea or subject in a sentence, like in "In conclusion, we need to find a solution."
No, "recently" is an adverb, not a subordinating conjunction. Subordinating conjunctions are words like "because," "although," and "if" that join dependent clauses to an independent clause in a sentence. "Recently" does not perform this function.
A conjunction is a word that links two clauses to form a compound sentence. Each clause is like a sentence with a subject and a verb. Example: I like ice cream but I'm allergic to it. "I like ice cream" is a clause and can stand by itself. Same with "I'm allergic to it". The word "but" is a conjunction.
what do these types of sentences look like : introductory phrase/clause , appositives and series conjunctions
Sure, I can use a conjunction like 'while' or 'although' to introduce an adverbial clause that provides additional information about an action or situation. Let me know if you would like me to demonstrate it with an example sentence.
No, it is not a conjunction. It is a pronoun, like who. It can introduce a noun clause (e.g. whoever we choose).
well, at least after expression words like yes, no, well, oh, and so on... Oh, and when you say multiple things like I did over
To separate an introductory phrase from the main clause, as in "After the meeting, we went out for lunch." To set off introductory words or adverbs at the beginning of a sentence, such as "However, I disagree with your assessment." To add clarity by signaling the beginning of the main idea or subject in a sentence, like in "In conclusion, we need to find a solution."
The adverb clause is "when the moon is full." The subordinating conjunction is when, the subject is moon, and the verb is "is."
Nevertheless is tricky word to analyze. It is not an inference indicator, but is a subordinating conjunction. That means it used to join an independent clause with a dependent clause. The dependent clause is a statement whose meaning is incomplete without the driving clause. When writing a sentence with a subordinating conjunction there are two rules one must follow. If the sentence starts with the conjunction, the sentence requires a comma between the two clauses. If the sentence has the conjunction in the middle, then no comma is used (this is MUCH different from coordinating conjunctions like 'and,' but,' etc. Also, note that the dependent clause should not repeat the subject. John has homework to do nevertheless watches t.v. for 3 hours. Nevertheless watching t.v. for 3 hours, John has homework to do.
Everything not introduced by a co-ordinating conjunction (co-ordinators or coordinators) or a punctuation mark (i.e. a comma) is a subordinate clause (introduce by conjunctions like whereas, as because, or relative pronouns such as who, that, which, or relative adverbs like when, where, whenever, etc.
No, "recently" is an adverb, not a subordinating conjunction. Subordinating conjunctions are words like "because," "although," and "if" that join dependent clauses to an independent clause in a sentence. "Recently" does not perform this function.
The word like can be a verb, or a conjunction (meaning as, similar to), and more rarely a noun.It is arguably acting as a preposition in constructions such as "swims like a fish" (truncated clause like a fish swims).
Oh, dude, should you put a comma after "when" in reality? Well, technically, if "when" is used as a conjunction to introduce a dependent clause, you don't need a comma. But hey, if you're feeling fancy and want to add a little pause for dramatic effect, go ahead and throw in that comma. Like, who's gonna stop you? It's your sentence, man.