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Just when I think I have understood Perfect tenses, something comes up and I just can't get my head around it.

In my book it says that:

We can also use the present perfect for states.

1. The shop has been open a week.

Why not Opened? Is Opened wrong here?

I read that has been is present perfect in passive form. Is above sentence in passive form?

Please consider this example from a different source:

2. John has been chosen to play football for Team A against Team B. (is this passive form too? If yes, what is its active form?)

We also use have been + ING in Present Perfect Progressive. (is this have been also passive same as Present Perfect Passive have been?)

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  • have been + ING is nothing to do with "passive" constructions. Passive constructions involve a past participle for which the associated "subject" of the verb is unspecified, such as They have been eaten (unspecified people ate whatever "they" refers to) - as opposed to They have been eating, which describes what they've been doing using an "active" continuous verb form. Sep 23 '21 at 11:55
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In your N.1 there is a form of the Active Voice. "Open" is a Subject Complement.

N.2 is a Passive Voice construction where the Past Participle of the verb "to choose" is a part of a compound verbal predicate. Its active form will be: "They have chosen John to play football...".

"Have been + ING" is, to put it simpler, a perfect of the Present Continuous, i.e. "John is playing football" - "John has been (have + Past Participle of "to be") playing football".

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  • so 'open' is a state here : Adj.? What about 'opened'?
    – sha3.nic
    Sep 23 '21 at 8:40
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    "Opened" plays the same role in the sentence as "chosen" does. "Notwithstanding this shop has been opened by sha3.nic this year it quickly became successful".
    – Eugene
    Sep 23 '21 at 9:32
  • @Eugene: Your example is wrong. "Although this shop was opened by sha3.nic this year, it has been (or it quickly became) successful". Sep 23 '21 at 11:41
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    @Old Brixtonian "Open" is an adjective as a part of speech but it is a SC as far as its role in the sentence is concerned.
    – Eugene
    Sep 23 '21 at 14:46
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    @Old Brixtonian Sorry, but what's wrong with "Notwithstanding the fact that the shop has been opened by the Mayor of London [by Mr. Sha3.nic] this year, it quickly became successful"??
    – Eugene
    Sep 23 '21 at 14:53

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