Active: Many tourist have visited that castle
Passive: DO/IO+have/has+been+past participle- That castle has been visited by many tourist
Active:Someone will finishthe work by 5pm
Passive: DO/IO+will+be+past participle- The work will be finished by 5pm by someone
-Future going to:
Active: Sally is going to make a beautiful dinner tonight
Passive: DO/IO+am/are/is+going to be+past participle- A beautiful dinner is going to be made tonight by her.
Sentences with 2 objects
Active: Rick gave me this book
Passive: -I was given this book by him.
-This book was given to me by him.