Passive voice Present
People speak English here.
English is spoken here (by people)
Gustave Eiffel built the Eiffel Tower in 1887
The Eiffel Tower was built in 1887 by Gustave Eiffel.
Someone has sent John a mysterious letter.
A mysterious letter has been sent to John by someone.
In the future we will explore new planets.
New planets will be explored in the future.
They cut down thousands of trees every day
Thousands of trees are cut down every day.
The police arrested five thieves yesterday.
Five thieves were arrested yesterday.
Many people have seen the UFO in this area.
The UFO has been seen by many people in this area.
Scientists will develop new sources of energy.
New sources of energy will be developed by scientists.
Bees sting humans all summer.
Humans are stung by bees all summer.
They invented the TV in the 20th century
The TV was invented in the 20th century.
Tim has already used the new computer.
The new computer has already been used by Tim.
Humans will never stop pollution.
Pollution will never be stopped.
Smoking kills millions of people every year.
Millions of people are killed by smoking every year.
The doctor told my father to stop smoking.
My father was told to stop smoking by the doctor.
She has written a test today.
A test has been written today by her.
Companies will invent new devices to store energy.
New devices to store energy will be invented by companies.
New devices will be invented by companies to store energy.