When to use the passive voice
Verbs can be active or passive. In the active voice, the subject is the doer. In the passive voice, the subject is the person or thing affected by the action of some other agent.
· The government approved the policy. (Active)
· The policy was approved by the government. (Passive)
There is nothing wrong with a passive construction, but if you can express the same idea using an active verb, you should do so. Passive forms show an unwillingness to shoulder responsibility. In several passive constructions the doer of the action is not mentioned at all.
