Verbs with no passive form

 A. Intransitive Verbs. They cannot be followed by objects. They have no passive forms

B. http://www.englishexercises.org/makeagame/viewgame.asp?id=8868. They can be followed by objects. Most transitive verbs have passive form, but some do not.

C. Verbs that are Intransitive or Transitive. Some verbs can be transitive or intransitive.

Reason for Using the Passive:

A. Focus on results or processes

B. Omitting the Agent (agentless passives). They are used when the agent is:

            Unimportant person

            Unknown Agent

            Obvious Agent

Used to avoid very general subjects such as people, someone, we, as and impersonal you and they.

Used to avoid taking responsibility for an action or to avoid blaming another person.

http://www.grammaring.com/verbs-which-cannot-be-used-in-the-passive-voice

http://www.grammar-quizzes.com/passive1d.html