simple present
The teacher helps me.
I am helped by the teacher
The police caught the robber.
The robber was caught (by the police.)
Lorraine will teach summer classes.
Summer classes will be taught (by Lorraine.)
Mary has been helped by the teacher.
The news surprises her.
She is surprised by the news.
The teacher helped him.
He was helped by the teacher.
We will wash the windows tomorrow.
The windows will be washed tomorrow (by us.)
The waiter has served everyone at the table.
Everyone at the table has been served.
The mailman delivers the mail by 2:00 PM.
The mail is delivered by the mailman by 2:00 PM.
UPS delivered the package at the office.
The package was delivered at the office (by UPS.)
The mechanic will change the oil in her car.
The police have caught the robber who stole your car.
The robber who stole your car has been caught (by the police.)
The passive voice is taught by Lorraine to her students.
Our CPA filed out taxes on time.
Our taxes were filed on time (by our CPA.)
Our friends will buy that huge house down the street from us.
That huge house down the street from us will be bought by our friends.
We have finally fixed all the mistakes in John's report.
All the mistakes in John's report have been fixed (by us.)
Taylor Swift releases albums regularaly.
Albums are released by Taylor Swift regularly.
John wrote the report that our boss wanted.
The report that our boss wanted was written by John.
We will fix all the mistakes in John's report.
The mistakes in John's report will be fixed by us.
Our friends have finally bought that huge house down the street from us that has been on the market for ages.
That huge house down the street from us that has been on the market for ages has finally been bought by our friends.