Are these in passives?
I learned English autodidactically by reading books , watching movies , video games , etc.... But, there are some things in english that confused me , such as passive forms. What's the difference between 'x cannot be stolen' and 'x cannot be steal'? . Are both in passive forms and have the same meaning ?
Only the first one is grammatically correct. The second one has no meaning. When something is stolen, it means that someone has stolen it. So, to answer your question, the first one is in passive form.