開いている、開けてある、and other verb forms for "to be opened"


> ドアが開いている。
>
> ドアが開けてある。
>
> ドアが開いてある。
>
> ドアが開けたままになっている。
>
> ドアが開けたままだった。
>
> ドアが開けられている。

Could you please explain the subtle variations between these six sentences?
Are all grammatically correct and natural-sounding? (of course, depending on
context)

My current understanding is below; I would appreciate if you could confirm or
deny them!

> ドアが開いている。The door is open.
>
> ドアが開けてある。The door is left open. The door is open and left that way by
> someone.
>
> ドアが開いてある。The door is in an opened state. (reason is unspecified, whether it
> was left open or whatnot)
>
> ドアが開けたままになっている。The door is LEFT open. (emphasis on left)
>
> ドアが開けたままだった。The door was left open. (past tense of the previous sentence)
>
> ドアが開けられている。The door is left open (generally; not referring to a specific
> occasion)




ドアが開いてある is ungrammatical. The other five are natural.

  1. **ドアが開いている** : The door is open.  
(Implies nothing about why it's open or how it opened. Maybe it opened by
itself, or maybe it was opened by the wind.)

  2. **ドアが開けられている** : The door has been opened (by someone).  
(Unlike 1, you're at least sure that it was opened by someone.)

  3. **ドアが開けてある** : Someone has opened the door (e.g., for me).  
(The door is open, and you're sure that someone has opened it in advance, for
a reason)

  4. **ドアが開いてある** : (makes no sense)
  5. **ドアが開けたままだ = ドアが開けたままになっている** : The door is LEFT open.  
(You believe it should be closed.)

  6. **ドアが開けたままだった = ドアが開けたままになっていた** : The door was LEFT open.  
(Past tense of 5.)




ドアが開いてある is ungrammatical. The other five are natural.

  1. **ドアが開いている** : The door is open.  
(Implies nothing about why it's open or how it opened. Maybe it opened by
itself, or maybe it was opened by the wind.)

  2. **ドアが開けられている** : The door has been opened (by someone).  
(Unlike 1, you're at least sure that it was opened by someone.)

  3. **ドアが開けてある** : Someone has opened the door (e.g., for me).  
(The door is open, and you're sure that someone has opened it in advance, for
a reason)

  4. **ドアが開いてある** : (makes no sense)
  5. **ドアが開けたままだ = ドアが開けたままになっている** : The door is LEFT open.  
(You believe it should be closed.)

  6. **ドアが開けたままだった = ドアが開けたままになっていた** : The door was LEFT open.  
(Past tense of 5.)

