Somebody has sent the email.
The email has been sent.
Nobody has made coffee.
Coffee hasn't been made.
Somebody has finished the report.
The report has been finished .
Somebody has learned lessons.
Lessons have been learned
Nobody has eaten the strawberries.
The strawberries haven't been eaten.
Somebody has bought the presents
The presents have been bought.
Nobody has put away the cups.
The cups haven't been put away.
Somebody has cleaned the kitchen.
The kitchen has been cleaned.
Nobody has written the email.
The email hasn't been written.
Nobody has turned on the air conditioning.
The air conditioning hasn't been turned on.
Someone has opened the package.
The package has been opened.
Somebody has taken the money
The money has been taken.
Somebody has fixed the heating.
The heating has been fixed.
Someone has switched off the lights in the classroom.
The lights in the classroom have been switched off.
Somebody has repaired the road.
The road has been repaired.
Somebody has watered the plants.
The plants have been watered.