Mary writes a letter every day.
A letter is written by Mary every day.
Emma cleaned the room.
The room was cleaned by Emma.
She has written a letter.
A letter has been written by her.
She is painting the wall.
The wall is being painted by her.
She was cleaning the floor.
The floor was being cleaned by her.
They deliver packages to our door.
Packages are delivered to our door by them.
They watched a movie last night.
A movie was watched by them last night.
They have cleaned the kitchen.
The kitchen has been cleaned by them.
They are building a new school.
A new school is being built by them.
They were painting the house.
The house was being painted by them.
The teacher explains grammar rules in class.
Grammar rules are explained in class by the teacher.
The chef prepared a special dish.
A special dish was prepared by the chef.
He has fixed the car.
The car has been fixed by him.
He is washing the dishes.
The dishes are being washed by him.
He was writing a letter.
A letter was being written by him.
People often underestimate the power of words.
The power of words is often underestimated by people.
The company launched a new product in March.
A new product was launched by the company in March.
The manager has approved the new policy.
The new policy has been approved by the manager.
The team is developing a new strategy.
A new strategy is being developed by the team.
The workers were repairing the road.
The road was being repaired by the workers.
Our team wins most of the matches.
Most of the matches are won by our team.
Scientists discovered a cure for the disease.
A cure for the disease was discovered by scientists.
Researchers have made important discoveries in recent years.
Important discoveries have been made by researchers in recent years.
cientists are conducting several important experiments.
Several important experiments are being conducted by scientists.
The police were questioning the suspect all night.
The suspect was being questioned all night by the police.