A Every sentence contains just one main clause. A main clause may form part of a compound sentence or a complex sentence, but it also makes sense on its own.
B A simple sentence (also knownas anindependent clause) is the basic building block of all sentences. It must have a main verb/verb group and a subject, and it must make complete sense on its own.
C Compound sentences are made up of two or more main clauses linked by a conjunction such asand, but,orso, as in the following examples: I love sport and I‘m captain of the local football team. [main clause] [conjunction] [main clause]She was born in Spain but her mother is Polish. [main[main clause] [conjunction] clause]
D InHer father died when she was very young,. we have:Her father died (main clause)when (subordinating conjunction)she was very young (adverbial clause)
E A complex sentence consists of an independent clause (simple sentence) and one or more dependent clauses (subordinating clauses). The dependent clause is introduced by either a subordinate conjunction (for an adverbial clause) or a relative pronoun (for an adjectival clause).1. Some common subordinating conjunctions (adverbial clauses): after, (al)though, as, because, before, if, once, since, unless, until, when, while2. Relative pronouns (adjectival clauses): who/that, whom, whose (people); that, which (animals, things).