Active and Passive Voice/Introduction
Many people are confused by whether they are using the active or passive voice when writing, and in which scenario each is preferred. Thankfully, there is a simple way of identifying the two styles; the key to understanding the difference between them is to spot the subject and the object in each sentence, and then selectively order the way you introduce them.
In an active voice sentence, the subject is the element that is doing the action, whereas the object is the element that is receiving the action described by the verb. In contrast, in a passive sentence, the element targeted by the action is promoted to the subject position. This can sound confusing, but a good way to learn this concept is to realize that a passive sentence will result in the subject effectively doing nothing, because whatever is happening is being done to it.