Passive voice has several important uses. For one, it allows you to change the order of subject and verb. However, with reporting verbs, we rarely use passive voice. In fact, we frequently use an inverted verb+subject order with a reporting verb without making the verb passive. The bottom line is that, if you use passive with a reporting verb, your sentence will seem strange to a native speaker of English.
Example:
Incorrect:
The New York Times reports that the average computer user checks 40 websites a day and can switch programs 36 times an hour. “It’s an onslaught of information coming in today,” said by Times technology journalist Matt Richtel.
Correct:
The New York Times reports that the average computer user checks 40 websites a day and can switch programs 36 times an hour. “It’s an onslaught of information coming in today,” says Times technology journalist Matt Richtel.
(Source: “The Price of Putting Your Brain on Computers.” National Public Radio, August 24, 2010)
If you don’t understand what is meant by the terms passive and active, or simply for more about passive voice and active voice, visit this post. If you don’t understand the the term “reporting verb” or to learn more about reporting verbs, click here.
Links:
The English Page’s “Active & Passive Verb Forms”
Further Reading:
In Writing Clearly: An Editing Guide (2nd edition), see pages 88-97
In Eye on Editing 2, see pages 37-40
In Read, Write, Edit: Grammar for College Writers, see pages 68-92