He must have forgotten to call his friend.
His friend must have been forgotten to be called by him.
You must submit your assignment by Friday.
Your assignment must be submitted by Friday by you.
She is cooking dinner in the kitchen.
Dinner is being cooked in the kitchen by her.
He reads a book before going to bed.
A book is read before going to bed by him.
He might finish the project by tomorrow.
The project might be finished by tomorrow by him.
He must have left his umbrella at the restaurant.
His umbrella must have been left at the restaurant by him.
She teaches English at the local school.
English is taught at the local school by her.
They visited Paris last summer.
Paris was visited last summer by them.
We have finished our work for today.
Our work for today has been finished by us.
She might have finished her work.
Her work might have been finished by her.
She should clean her room regularly.
Her room should be cleaned regularly by her.
The team has won the championship.
The championship has been won by the team.
They should take care of their health.
Their health should be taken care of by them.
We drink coffee in the morning.
Coffee is drunk in the morning by us.
She has completed her assignment.
Her assignment has been completed by her.
They play football every Saturday afternoon.
Football is played every Saturday afternoon by them.
She wrote a letter to her friend yesterday.
A letter was written to her friend yesterday by her.
She might have misplaced her keys.
Her keys might have been misplaced by her.
They have painted the walls of the house.
The walls of the house have been painted by them.
They are renovating the old house.
The old house is being renovated by them.
The company launched a new product last month.
A new product was launched last month by the company.
He has eaten all the cookies.
All the cookies have been eaten by him.
He finished his homework before dinner.
His homework was finished before dinner by him.
The mechanic is fixing the car engine.
The car engine is being fixed by the mechanic.
We are planting flowers in the garden.
Flowers are being planted in the garden by us.
They should have completed the project by now.
The project should have been completed by them by now.
He is writing an email to his boss.
An email is being written to his boss by him.
I must attend the meeting this afternoon.
The meeting must be attended by me this afternoon.
The chef prepares delicious meals for the customers.
Delicious meals are prepared for the customers by the chef.
They should have received the parcel yesterday.
The parcel should have been received by them yesterday.