[General] Agra has known

[suniljain]

Agra has known for its heritage and culture.

I understand "has" is not correct and we should use"is". I could not understand why?

 

[MikeNewYork]

Using "has" makes it sound as if Agra knows something.

 

[anhnha]

How about this? Is it also OK and does it have the same meaning? Thanks!
Agra has been known for its heritage and culture.

 

[MikeNewYork]

Yes, that works.

 

[suniljain]

How about this? Is it also OK and does it have the same meaning? Thanks!
Agra has been known for its heritage and culture.

Is this in passive?

 

[suniljain]

Is this in passive?

Using "has" makes it sound as if Agra knows something.

Ram has known about this.

Is this OK?

 

[GoesStation]

Is this in passive?

Yes. "Agra has been known for its heritage and culture" is in the passive voice. The sentence is grammatically complete but feels logically incomplete to me; I would expect something like "Agra has been known for its heritage and culture since the seventeenth century."

 

[GoesStation]

Ram has known about this.

Is this OK?

Yes.

 

[emsr2d2]

I find "Ram has known about this" unnatural although not ungrammatical. I can't think of a situation in which I would use it.

John is going to be fired. Ram knows about this.
John was going to be fired. Ram knew about this.

However, like the previous example you were given, it could be used if followed by some kind of time frame.

The company is about to be declared bankrupt. Ram has known about this for several weeks but didn't tell anyone.

 

[suniljain]

Agra has been known for its heritage and culture.

What would be the active voice of this?
Agra is known for its heritage and culture. Is this the active of above sentence?

 

[tzfujimino]

Agra has been known for its heritage and culture.

What would be the active voice of this?

It would be "People/They/We have known Agra for its heritage and culture."

 

[Matthew Wai]

"Agra has been known for its heritage and culture" is in the passive voice.

I doubt it is passive because 'known' is considered an adjective below.
http://ldoceonline.com/dictionary/known_2 Definition#3 be known for something

 

[MikeNewYork]

"Known" is a past participle. As such, it can function as an adjective, but it also can form part of the passive voice.

 

[suniljain]

"Known" is a past participle. As such, it can function as an adjective, but it also can form part of the passive voice.

Does it mean that each and every past participle can function as adjective? Is there any rule for this?

 

[MikeNewYork]

I have learned not to stretch things too far to make rules. I don't know that every past participle can be an adjective, but many can.