Part 1 of this video shows you how to identify and form the passive voice with a past participle, and also how it is different from using a past participle as an adjective. Part 2 of this video gives you a chance to practice fixing passive voice sentences to make them active.  Listen to native English speakers use the passive voice in everyday conversation as they go on a hike in Rocky Mountain National Park. 

Part 1 Passive Voice

Part 2 Passive Voice