A complex sentence is made up of ONLY one independent clause and AT LEAST one dependent clause. (“After the storm [dependent clause], I went outside [independent clause].) The dependent clause(s) can appear either before or after the independent clause, depending on the sentence.
A compound-complex sentence is made up of MORE THAN ONE independent clause and AT LEAST ONE dependent clause. (“After the storm [dependent clause], I went outside [independent clause] and I picked flowers [independent clause].)
A compound-complex sentence is also known as Compound sentence.
The next day, a family of pigs arrived, and they invited their friends with them. = Compound Sentence.
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