He writes a letter.
A letter is written by him.
They are building a new house.
A new house is being built by them.
She has completed her homework.
Her homework has been completed by her.
They will finish the task.
The task will be finished by them.
She will have completed the book.
The book will have been completed by her.
She cooked dinner.
Dinner was cooked by her.
The workers are repairing the road.
The road is being repaired by the workers.
He has solved the problem.
The problem has been solved by him.
The teacher will check the homework.
The homework will be checked by the teacher.
They will have cleaned the house.
The house will have been cleaned by them.
She waters the plants every morning.
The plants are watered every morning by her.
The children were playing cricket.
Cricket was being played by the children.
We have prepared the report.
The report has been prepared by us.
He can solve the problem.
The problem can be solved by him.
The workers will have repaired the bridge.
The bridge will have been repaired by the workers.
She cleaned the house.
The house was cleaned by her.
We were reading a novel.
A novel was being read by us.
They had cleaned the classroom.
The classroom had been cleaned by them.
He could write a letter.
A letter could be written by him.
We will have written the report.
The report will have been written by us.
We watched a movie.
A movie was watched by us.
The children are playing games.
Games are being played by the children.
We had submitted the report.
The report had been submitted by us.
They must follow the rules.
The rules must be followed by them.
He will have solved the puzzle.
The puzzle will have been solved by him.