Future perfect to express action that will be completed by or before a specified time in the future * By next month we will have finished this job.

* He won't have finished his work until 2:00. THE PASSIVE TENSES

Simple present active: passive: * The company ships the computers to many foreign countries. * Computers are shipped to many foreign countries. Present Progressive active: passive: * The chef is preparing the food. * The food is being prepared. Simple Past active: passive: * The delivery man delivered the package yesterday. * The package was delivered yesterday.