existed and existing

[Nightmare85]

Hello guys,
Is there a difference between these two words here:
War has been existing forever.
War has been existed forever.

As far as I know we use the "past version" to make a passive sentence.
I have been hunting. -> I'm the hunter (active).
I have been hunted. -> I'm the prey (passive).

I don't think that logic applies to the word "exist".
What is your opinion?

Cheers!

 

[SoothingDave]

Not a teacher.

"Has been existed" is not grammatical.

"War has existed forever." or "War has always existed" are more natural expressions.