Student or Learner
Adding "ed" can make a word past tense, is there other rules like adding "ed" to make the word an adjective? What are some rules to adding ed other than changing the time?
E-mail enables messages to be exchanged from computer to computer.
E-mail messages are stored on servers. (Why can't it be store)
Passive forms consist of an appropriate tense of be followed by the past participle of the verb. For example, the passive form of the simple present of eat is the simple present of be followed by eaten:
It is eaten.
She escaped uninjured but her boyfriend was shot in the chest and died.
He was being treated for a stomach ulcer.
He thinks such events could have been avoided.
I'll do more research with passive voice. So with passive voice, you can add ed to the verb?
I think I'm getting it. In my examples, the way they "are written" (past participles) is called past participles. "Emails are stored in hard drive." This mean that they did that in the past and still doing it in the future (Past participles).
they are stored - present time
they were stored - past time
they will be stored - future time
You can think of it as similar to the -ado participle in Spanish, which also frequently functions as a noun.