Coordinating (FANBOYS)
- for, and, nor, but, or, yet, so.
- Join two equal ideas with a comma before: I tried, but I failed.
Subordinating
- because, although, while, since, unless, if.
- Although it was late, we continued.
Key idea
Coordinating conjunctions (FANBOYS) join equal ideas; subordinating conjunctions (because, although, if) add reasons or conditions.
Remember
Put a comma before a coordinating conjunction joining two full sentences.