I am struggling slightly when it comes to writing sentences in the Russian passive voice. Can anyone explain the formation of it to me? Preferably with complicated explanations in English, as I am far less likely to understand any such explanation in Russian. How do you express the idea of "by" in this context?

In case I am mistaken, I think the passive in English would be:
The dog was ran over by a car

As opposed to the "active voice" which would be: The car ran over the dog.

большое спасибо за помащь

Джек