Rewrite the sentence in Active voice. Such boys are always liked by people.

When changing from passive voice to active voice we needt to first identify the subject and object of the sentence and interchange them. Then identify the tense of the sentence and in the active form use the same tense.The given sentence is in the present tense because helping verb in the passive form has are. So the active voice will be in the present tense, The verb in the passive form is the past participle of the verb. liked is the past particple of the verb like. By is used before the object/doer of the action. Here Such boys is the subject and people is the object so they are interchanged.   Important Point:Tense remains same when you change the voice.