Iam always confused with the usage of following two formats of structures.When to use which one iam really confused.Some times for me it appears like both the formats can be used,but if i observe the speakers of english they are using only one format.Is it that any thing iam missing from the usage point of view in the following two formates of the structures.
1)SUBJECT +is /are +past participle form of verb
2)SUBJECT + have/has been +past participle form of verb
Consider the following example.
Q)where is the coffee?
A1)cofee is kept on the table.
A2)cofee has been kept on the table.
For the above question i see in general only the answer A1.A2 is never heard at all.
Is it the A2 way of telling is wrong.
Consider the another example
S1) Lot of movies are taken on this road.This is not the only first movie taken on this road.
S2)Lot of movies have been taken on this road.This is not the only first movie taken on this road.
I saw the S1 and S2 both being used.Thse S1 and S2 are similar to the A1 and A2 above.
So is it thet A1 and A2, and S1 and S2 formats can be used interchangebly?
Please answer my question basically from the point of usage of the above two formats.
The difference between your sentences are as follows:
A1. Coffee is kept on the table.
S1. [A] lot of movies are taken on this road.
In both of those sentences the action is taking place in the present time.
A2. Coffee has been kept on the table
S2. [A] lot of movies have been taken on this road.
In both of those sentences, the action has taken place in the past and has continued up to the present, but may not be happening in the present.