His business begins to fail when his patron dies, so he decides to go to sea again and travels for six years. Although he has planned to return home at the end of this time, he decides to accept one last job on a ship called the Antelope.
A complex sentence is formed by adding one or more subordinate (dependent) clauses to the main (independent) clause using conjunctions and/or relative pronouns. A clause is a simple sentence. Simple sentences contain only one clause (verb group). Complex sentences contain more than one clause (verb group)