Разберите предложение по Past Perfect

He had finished his work by that time

Напишите 3 формы , Пложительная . Отрицательная . Вопросительная . обязательно 3

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разбери еще Past Continuous Theq were playing football from 2 pm till 5pm yesterday тоже 3 формы буду благодарен!!!

They там в начале

+ He had finished his work by that time. - He had not finished his work by that time.?  Had he finished his work by that time?