A complex-compound sentence is a combination of a complex sentence and a compound one. A compound sentence has at least two independent clauses, and a complex sentence has at least one dependent clause, so a complex-compound sentence has at least two independent clauses along with at least one dependent clause.
Here are a few examples:
I would like to go to Japan, but Sally wants to visit Rome before the Euro improves against the dollar.
Independent clauses: (1) I would like to go to Japan;( 2) but Sally wants to visit Rome.
Dependent clause: before the Euro improves against the dollar
Although most people say Empire Strikes Back is the best Star Wars movie, I prefer A New Hope, and that’s the movie I most often put in when I can’t decide what I want to watch.
Independent clauses: (1) I prefer A New Hope; (2) and that’s the movie I most often put in
Dependent clauses: (1) Although most people say Empire Strikes Back is the best Star Wars movie; (2) when I can’t decide what to watch
People enrolled in this plan are covered only if they go to a doctor or hospital within the network, but insurers are also experimenting with plans that allow a patient to see someone outside the network but pay much more than they would in a traditional plan offering out-of-network benefits. [NYT]
Independent clauses: (1) People enrolled in this plan are covered; (2) but insurers are also experimenting with plans
Dependent clauses: (1) only if they go to see a doctor or hospital within the network; (2) that allow a patient to see someone outside the network but pay much more than they would in a traditional plan offering out-of-network benefits.
