Complex and Compound-Complex Sentences
Complex sentences combine an independent clause with at least one dependent clause using subordinating conjunctions like although, after, unless, until, whenever, while, and wherever. The placement of these conjunctions affects comma usage.
When the subordinating conjunction comes in the middle independent+subordinatingconjunction+dependent, no comma is needed: "I turned my computer off as soon as Robbie opened the door." When it starts the sentence subordinatingconjunction+dependent,independent, use a comma: "As soon as Robbie opened the door, I turned my computer off."
Compound-complex sentences are the most sophisticated structure, containing either two independent clauses plus one dependent clause, or one independent clause plus two dependent clauses. For example: "Since he purchased the hat, all he wants is a tie to go with it, but he is quite picky about the brand."
Challenge yourself: Try writing a paragraph using at least one of each sentence type. This variety will make your writing flow naturally and keep readers engaged!