Hmmm I believe it is colloquialism and social context !! if not I'll update my answer !!
Verbs in the perfect form use a form of "have" or "had" + the past participle. I believe the answer in this case is "have+been+verb"
Explanation:
If the question is
He answers all the question then it's passive form is
- All the question is answered by him.
If the question is
He answered all the question.
- All the question was answered by him.
Hope it helps :)❤
My teachers can but I do believe everyone’s is different
