Задание  Поставить глагол-сказуемое одного предложения из текста во все временные формы (Present, Past, Future) групп Continuous и Perfect в страдательном залоге
On the average students attend school approximately six hours a day.
Помогите пожалуйста!!!

On the average school is attended by students approximately six hours a day. Continuous: 1) Present: is being attended 2) Past: was being attended 3) Future ––– Perfect: 1) Present: has been attended 2) Past: had been attended 3) Future – will have been attended