The document discusses active and passive voice in English grammar. Active voice has the subject performing the action of the verb, as in "The president wrote a novel." Passive voice has the subject receiving the action of the verb, as in "A novel was written by the President." To form the passive voice, a form of the verb "to be" is used along with the past participle, such as "it is cleaned." The document was created by a student from Gunadarma University in Indonesia to explain active and passive voices.