The chef cooks the meal.
The meal is cooked by the chef.
A new product has been launched by the company.
The company has launched a new product.
I paint many pictures.
Many pictures are painted.
The work had been completed before sunset.
They had completed the work before sunset.
The students were writing the exam.
The exam was being written by the students.
She will have finished the report by evening.
The report will have been finished by evening.
They will cook dinner.
Dinner will be cooked.
They stole my bike.
My bike was stolen.