"Busy" is not a past participle, and you can't have a passive form without a past participle. "Busy" is simply an adjective, and "have been" the present perfect form of "to be".
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Pieanne"Busy" is not a past participle, and you can't have a passive form without a past participle.Thank you.
"Busy" is simply an adjective, and "have been" the present perfect form of "to be".