He hath perfected (teteleiōken). Perfect active indicative of teleioō. He has done what the old sacrifices failed to do (Heb 10:1).
Them that are sanctified (tous hagiazomenous). Articular participle (accusative case) present passive of hagiazō (note perfect in Heb 10:10) either because of the process still going on or because of the repetition in so many persons as in Heb 2:11.