Active and Passive Voice | Learn English | EasyTeaching

The video begins by explaining that understanding active and passive voice requires knowing the difference between a sentence's subject and its agent. The subject always comes before the verb, while the agent is the person or thing performing the action. In active voice, the subject and the agent are the same, as in 'Shona cleans the house'.

In passive voice, the subject and the agent are different. For example, 'The house is cleaned by Shona.' Here, the house is the subject (receiving the action), but Shona is still the agent (performing the action). Active voice has the subject performing the action, while passive voice has the subject receiving the action.

To change a sentence from active to passive voice, the subject becomes the object and the object becomes the subject. An example is 'The birds ate all the seed' (active) becoming 'All the seed was eaten by the birds' (passive). This involves switching the positions of the subject and object, adding 'by', and using a form of 'to be' with the past participle of the verb.

While active voice is more common, passive voice is used when the performer of the action is unknown or unimportant (e.g., 'The bridge was built in the 1700s'), when the performer is obvious (e.g., 'Toby was promoted last week'), when the result of the action is more important, or to be more polite (e.g., 'We haven't been served').

The video provides an exercise for viewers to identify active and passive voice sentences by analyzing the subject and agent. Sentences where the subject and agent are the same are active, and those where they differ are passive.

Another exercise challenges viewers to rewrite sentences, changing active voice to passive voice and vice versa. Examples include converting 'The manager served the customer' to 'The customer was served by the manager' and 'Mark's phone was stolen' to 'Someone stole Mark's phone'.