A complex sentence has at least one main clause and one or more subordinate clauses. The subordinate clause may be a noun clause, an adjective clause (relative clause) or an adverb clause.
Study the following sentences.
- The boy was caught. He had stolen the bicycle.
These two sentences can be combined into a complex sentence by using the relative pronoun who.
- The boy who had stolen the bicycle was caught.
- The man arrived on Monday. His name is Michael.
- The man whose name is Michael arrived on Monday.
- This is a fine opportunity. It should not be lost.
- This is a fine opportunity which should not be lost.
- This is an old fort. It was built during the 14th century.
- This is an old fort which was built during the 14th century.
Combine the pairs of sentences given below using the relative adverbs when, where and why.
- This is the house. The murder was committed here.
- My grandfather died. At that time I was only six.
- You refused to come. Can you tell me the reason?
- This is the house where the murder was committed.
- At the time when my grandfather died I was only six.
- Can you tell me the reason why you refused to come?