* Conjunctions connect words, phrases, or clauses. They can be coordinating conjunctions (e.g., and, but, or, so), subordinating conjunctions (e.g., because, although, while), or correlative conjunctions (e.g., both...and, either...or, neither...nor).
* Prepositions connect a noun or pronoun to another word in the sentence, showing the relationship between them. They often indicate location, direction, time, or manner (e.g., on, in, at, by, with, for, from).
Here are some examples:
Conjunctions:
* Coordinating: "The sun was shining and the birds were singing."
* Subordinating: "We went to the beach because it was a beautiful day."
* Correlative: "Both my brother and I went to the concert."
Prepositions:
* "The book is on the table."
* "I walked to the store."
* "He arrived in the morning."
* "She spoke with enthusiasm."