what is passive voice

Passive voice is a grammatical construction where the subject of the sentence is the recipient of the action or the theme of the main verb, rather than the one performing the action. In passive voice, the focus is on the action or the object of the action. It is formed using a form of "to be" and the past participle of the main verb. For example, in the sentence "The tree was pulled down," the tree is the subject and the recipient of the action. Passive voice is used to emphasize the action or the object of the action, especially when the performer of the action is unknown or less important. It is commonly used in scientific and legal writing to convey objectivity and to shift the focus away from the doer of the action