Coordinating, subordinating, and correlative conjunctions are essential for forming complex sentences and creating cohesion in writing. For example, using coordinating conjunctions such as "and," "but," and "or" can help combine two simple sentences into one compound sentence. Subordinating conjunctions like "although," "because," and "while" can introduce dependent clauses and add more detail to a sentence. And correlative conjunctions like "either...or," "neither...nor," and "both...and" can be used to show a relationship between two ideas or choices. One way to practice using these conjunctions in writing is to create a paragraph using only complex sentences and incorporating all three types of conjunctions. This will help build a better understanding of how different conjunctions can be used to create different sentence structures and convey a variety of meanings in writing. (Another easy route for remembering basic conjunctions is to remember FANBOYS = For And Nor Because Or Yet So)