Everybody has packed his bag.

• His bag has been packed by everybody.

Rules for changing active voice into PASSIVE voice:-

⭐The object of the verb is changed to the subject position and the subject to the object position.

⭐️Verb in active voice is changed into its Passive form(Past participle form).

⭐️ While changing we have to aware of Verb.

⭐️ In active voice the subject is initial position .

⭐️In passive voice the object is in initial position .

⭐️The object in active voice becomes subject in passive voice.

⭐️The subject in active voice becomes object in passive voice.

⭐️Verbs in present CONTINUOUS tense, past continuous tense and future continuous tense cannot be changed into passive voice.

⭐️In passive voice, 'by' is placed before the object

⭐️.If there are MODALS in the sentence, then the form is modal+be+pastparticiple modal+be+pastparticiple modal+be+pastparticiple modal.

⭐️The pronouns in the active are also changed accordingly LIKE I becomes me, they becomes them etc.

⭐️For order MAKING sentences, the passive form is let+object+be+pastparticiple let+object+be+pastparticiple let+object+be+