Is this book translated by two students ? Этот вопрос перефразируйте во все времена passive voice пллиз , очень надо . Заранее спасибо . Даю 25 баллов

Present Simple: Is this book translated by two students?

Present Continuous:  Is this book being translated by two students?

Present Perfect:  Has this book been translated by two students?

Past Simple:  Was this book translated by two students?

Past Continuous:  Was this book being translated by two students?

Past Perfect:  Had this book been translated by two students?

Future Simple:  Will this book be translated by two students?

Future Continuous: см. Future Simple.

Future Perfect:  Will this book has been translated by two students?

Все Perfect Continuous автоматически переходят в Perfect. (т.е. нет времени Perfect Continuous)