Чтобы преобразовать предложения из активного залога (Active Voice) в пассивный (Passive Voice), нужно следовать определенным правилам. В общем случае, для того чтобы образовать пассивный залог, мы используем вспомогательный глагол "to be" в нужной форме и причастие прошедшего времени (Past Participle) основного глагола.
Давайте рассмотрим каждое предложение по порядку:
I bought potatoes yesterday.
P: Potatoes were bought by me yesterday.We shall bring the books tomorrow.
P: The books will be brought by us tomorrow.They are repairing the clock now.
P: The clock is being repaired by them now.They sell milk in this shop.
P: Milk is sold in this shop.I have translated the whole text.
P: The whole text has been translated by me.He stole a lot of money from the shop.
P: A lot of money was stolen by him from the shop.By six o'clock they had finished the work.
P: The work had been finished by them by six o'clock.At twelve o'clock the workers were loading the trucks.
P: The trucks were being loaded by the workers at twelve o'clock.By three o'clock the workers had loaded the trucks.
P: The trucks had been loaded by the workers by three o'clock.He is teaching computer science to our children now.
P: Computer science is being taught to our children by him now.They will show this film on TV.
P: This film will be shown on TV by them.They are building a new concert hall in our street.
P: A new concert hall is being built in our street by them.They broke the window last week.
P: The window was broken by them last week.When I came home, they had eaten the sweets.
P: When I came home, the sweets had been eaten by them.We shall do the work in the evening.
P: The work will be done by us in the evening.He wrote this book in the 19th century.
P: This book was written by him in the 19th century.They were playing tennis from four till five.
P: Tennis was being played by them from four till five.They have carried out a number of important experiments in this laboratory.
P: A number of important experiments have been carried out by them in this laboratory.Livingstone explored Central Africa in the 19th century.
P: Central Africa was explored by Livingstone in the 19th century.By the middle of autumn we had planted all the trees.
P: All the trees had been planted by us by the middle of autumn.They will stage this play at the beginning of next season.
P: This play will be staged by them at the beginning of next season.They have forgotten the story.
P: The story has been forgotten by them.Has anybody explained the rules of the game to you?
P: Have the rules of the game been explained to you by anybody?They haven't brought back my skates.
P: My skates haven't been brought back by them.Teachers usually make corrections in red ink.
P: Corrections are usually made by teachers in red ink.
Теперь вы увидели, как можно преобразовать все эти предложения из активного в пассивный залог. Если у вас есть вопросы или нужна дополнительная информация, не стесняйтесь спрашивать!