Here's a breakdown:
* Conjunctions are words that join words, phrases, or clauses.
* Sentences are complete thoughts that typically contain a subject and a verb.
There are three main types of conjunctions:
* Coordinating conjunctions (FANBOYS: For, And, Nor, But, Or, Yet, So) connect words, phrases, or clauses of equal grammatical rank.
* Example: "I went to the store, and I bought some milk."
* Subordinating conjunctions (e.g., because, although, while, since) connect a dependent clause to an independent clause.
* Example: "Because it was raining, we stayed inside."
* Correlative conjunctions (e.g., both...and, either...or, neither...nor) connect two parallel grammatical structures.
* Example: "I like both apples and oranges."
So, yes, a conjunction plays a crucial role in joining different parts of a sentence to create a grammatically correct and meaningful whole.