Complex Sentences in Tamil grammar are called as ‘Murukku Vaakkiangal’. Similar to English language, the Complex Sentences in Tamil are also a combination of a main clause and one or more subordinate clauses. The subordinate clause can be an noun clause, adjective clause, or adverb clause. Understanding and forming Complex Sentences are essential as they add more information and clarity to communication. Tamil language has a rich structural pattern which allows for the construction of ideas in complex ways.