Question

I reached home. the sun had set before change into complex sentence​

Answer 1

The given sentence can be changed into complex as such: I reached home before the sun had set.

What is a complex sentence?

• A sentence that has one or more phrases in it is called a complex sentence.
  
  
• These phrases are joined together by prepositions or conjunctions.
  
  
• Here before is acting as a conjunction word.
  
  
• It has helped us to join two phrases together.