Passive Voice
Both of these examples we just looked at are in an active voice because the subject comes before the verb. But what if we flipped the order?
- The ball was thrown by Mary.
- John was bit on the leg by the dog.
Well, now we have passive voice. In passive voice, the object comes first, and the verb has to have some form of ''is'' (what we call the 'to be' verbs) in order for it to make sense.
You have probably already noticed that both of these sentences just don't sound as good anymore. They are wordier because of the addition of 'was' and 'by,' and they just sound kind of awkward. That's because in English we are used to the subject coming first in most cases.
Changing Passive to Active Voice
So, if you get a paper back that has been marked for passive voice, how do you fix it? Well, start with the verb.
The paper was presented by Joe to the class.
In this case, the verb is 'presented' because it is the only action word in the sentence. OK, now we have three nouns in the sentence ('the paper,' 'Joe,' and 'the class'), so which one is doing the presenting? Joe is doing the presenting, so he is our subject. Now, let's put him at the beginning of the sentence instead of in the middle:
Joe
Now let's add what he was doing:
Joe presented
What was he presenting? The paper, so that is our object:
Joe presented the paper
We've switched the sentence from passive to active, so now we can just add the rest of the sentence and leave it the same:
Joe presented the paper to the class.
And now our sentence is active. It is more clear and dynamic and uses fewer words to express the same idea.