Complex Sentence is a Sentence which has at least one Subordinate Clauses besides the Main Clause. A Complex Sentence always has a Subordinator such as because, since, after, although, or when or a relative pronoun such as that, who, or which. Analysis of Complex Sentences is the analysis of the Clauses in the Sentences.
Examples of Complex Sentences in English Grammar:
1. Although I was scared, I bravely entered the cemetery.
2. After they finished playing, Happy and Harish went to the movies.
3. His father said that he had gone to the shop to make some purchases.
4. Whenever he heard the tune, the musician who lived in that house, answered that the tune is old.