Identifying passive voice involves looking for sentences where the action is emphasized over the actor. Common indicators include the use of "by" phrases (e.g., "by the team") and forms of the verb "to be" (e.g., "is," "was," "were"). To convert passive voice to active voice, identify the actor and make them the subject of the sentence. For example, "The report was prepared by the team" can be changed to "The team prepared the report."