Final answer:
Change the sentence from active voice to passive voice by making the object the subject and using a form of 'to be' + past participle. Example: 'A new plan is being considered by some people.'
Step-by-step explanation:
To change the sentence from active voice to passive voice, the object of the active sentence becomes the subject of the passive sentence. The verb in the passive sentence is formed by using a form of the verb 'to be' + the past participle of the main verb. In this case, the active sentence 'Some people are considering a new plan' can be changed to passive voice as 'A new plan is being considered by some people.'
Learn more about active voice to passive voice