Magical powers were once thought to 'be attached to' the stone. [=the stone was once thought to have magical powers]
Little credibility 'was attached to' his story. [=people did not think that his story was very credible]
The shy child 'attached' herself 'to' her mother [=stayed close to her mother] during the whole party.
(..) Well, the only spare tyre I've seen around here belongs to Lieutenant Meinberg. (GRETEL LAUGHING) - Well, is he using it? - Yes, he's very attached to it. Oh, stop it. He doesn't understand. He's only eight. You're only , so stop pretending you're any older. What do you want a tyre for, anyway? (..)2008 The Boy in the Striped Pajamas