what is passive voice?

Kalimat pasif gitu.. Kalo di bahasa indonesia kayak misalkan "Dia dilempar oleh ombak keluar dari kapal" bhs inggris => "He was thrown by the wave out of the ship" Pattern nya : S + to be + verbIII + by + O + Adv

Passive voice is Ussually use to say what happens to the subject and the action is often unknown or unimpportant