She wrote a letter to her friend to explain the situation.
A letter was written by her to her friend to explain the situation.
They built a beautiful house on the outskirts of the city last year.
A beautiful house was built by them on the outskirts of the city last year.
He read the book in the library while it was raining outside.
The book was read by him in the library while it was raining outside.
The teacher explained the lesson clearly to the students before the test.
The lesson was explained by the teacher clearly to the students before the test.
The chef prepared a delicious five-course meal for the guests at the party.
A delicious five-course meal was prepared by the chef for the guests at the party.
They must finish the assignment by tomorrow.
The assignment must be finished by tomorrow.
She can solve the problem easily.
The problem can be solved easily by her.
They should clean the room before the guests arrive.
The room should be cleaned before the guests arrive.
He could deliver the package tomorrow.
The package could be delivered tomorrow.
We might change the schedule next week.
The schedule might be changed next week.
They were discussing the project in the meeting when I walked in.
The project was being discussed by them in the meeting when I walked in.
She was painting the fence while her brother was mowing the lawn.
The fence was being painted by her while her brother was mowing the lawn.
We were watching a movie when the power went out.
A movie was being watched by us when the power went out.
He was cooking dinner when his friend called him.
Dinner was being cooked by him when his friend called him.
The students were practicing their speeches for the competition.
The speeches were being practiced by the students for the competition.
She has written three emails today.
Three emails have been written by her today.
They have completed the project ahead of schedule.
The project has been completed by them ahead of schedule.
He has read all the books in the series.
All the books in the series have been read by him.
We have finished the report and sent it to the manager.
The report has been finished by us and sent to the manager.
The chef has prepared the special dish for the guests.
The special dish has been prepared by the chef for the guests.
She had written the letter before I arrived.
The letter had been written by her before I arrived.
They had completed the assignment before the deadline.
The assignment had been completed by them before the deadline.
He had read the book by the time the class started.
The book had been read by him by the time the class started.
We had finished the project when the meeting began.
The project had been finished by us when the meeting began.
The chef had prepared the meal when the guests arrived.
The meal had been prepared by the chef when the guests arrived.