Re: " BELONG' have the form "be + -ed" or not?
Mostly correct. A passive requires an object in the active voice, which becomes the grammatical subject in the passive voice. There are many who include an indirect object, which could be used with an intransitive verb.
Originally Posted by c3s2ron
The teacher read to the children. The children were read to by the teacher.
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.