Relative Clause and Past Participles As Adjective ???

As they stand, there is no difference in intent.

or the bones that have been shared and the bones that had been shared ???

and i wanna ask something. '' the shared bones '' ------ past participle as adjective ???

emilylionor the bones that have been shared and the bones that had been shared

Of course: they refer to different times, just as 'have' and 'had' do.

emilylionthe shared bones '' ------ past participle as adjective

Yes: the tired teacher, the lost days, the abandoned career.

ok thank you so much but i want to ask something ( sorry about my folly

No, they are just past participles used as adjectives.