We use the passive voiceThe form of the transitive verb that shows whether the subject acts (active voice) or is acted upon (passive voice). (instead of the active) when we want to shift the focusThe main or central point of attention or interest; what is emphasized. E.g.: All I wanna do is have some fun. ("all") of attention from the agentThe doer of an action; the person or the thing that does something. E.g.: True Romance was written by Tarantino. ("Tarantino") to the objectA person or thing that is affected by the action of a verb or involved in the result of an action. of the sentence. This means that the agent may not be so important and may be omitted in the passive sentence.

Helen finished the letter in two hours. (focus on Helen, the agent)
The letter was finished in two hours. (focus on the letter, the object)

The water in the nearby pool reflected her figure. (focus on the water in the nearby pool, the agent)
Her figure was reflected in the nearby pool. (focus on her figure, the object)

Pictures

Her figure was reflected in the nearby pool.

The pigeons were dispersed by the sound of the muezzin.

Uses of passive voice
Uses of passive voice Passive voice: unknown or unimportant agent