The structure of the passive voice is very simple:

subject + auxiliary verb (be) + main verb (past participle)

Look at these examples:

Use of the Passive Voice

We use the passive when:කර්මකාරක වාක්‍ය භාවිතා කරනුයේ

• we want to make the active object more important කර්මයට වැඩි අවධානයක් යොමු කිරීමට
  
• we do not know the active subject කතෘ නොදන්නා විට
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  

  	subject	verb	object
  give importance to active object (President Kennedy)	President Kennedy	was killed	by Lee Harvey Oswald.
  active subject unknown	My wallet	has been stolen.	?

  
  

  Note that we always use by to introduce the passive object (Fish are eaten by cats). Look at this sentence:

  
  
  
  
  • He was killed with a gun. ඔහු මරා දමා ඇත්තේ තුවක්කිවකිනි.
    අප by පදය භාවිතා කරන්නේ ක්‍රියාව කළ තැනැත්තා හඳුන්වන්නටය. මෙහිදී ක්‍රියාව කළ තැනැත්තා නැත. තුවක්කුවකින් එය කළ බව පමණක් පෑවසේ. (with)
  
  

  Normally we use by to introduce the passive object. But the gun is not the active subject. The gun did not kill him. He was killed by somebody with a gun. In the active voice, it would be: Somebody killed him with a gun. The gun is the instrument. Somebody is the "agent" or "doer".

  
  
  He was killed with a gun by someone.