утвърждавам означава в английски

establish [established, establishing, establishes]▼(To appoint, as officers, laws, regulations, etc.; to enact; to ordain)
verb
[UK: ɪ.ˈstæ.blɪʃ] [US: ə.ˈstæ.blɪʃ]

homologate [homologated, homologating, homologates]▼(confirm)
verb
[UK: hɒ.ˈmɒ.lə.ɡeɪt] [US: hə.ˈmɑː.lə.ˌɡeɪt]

ratify [ratified, ratifying, ratifies]▼(give formal consent to)
verb
[UK: ˈræ.tɪ.faɪ] [US: ˈræ.tə.ˌfaɪ]

validate [validated, validating, validates]▼(to render valid)
verb
[UK: ˈvæ.lɪ.deɪt] [US: ˈvæ.lə.det]

approve [approved, approving, approves]▼(to sanction officially; to ratify; to confirm; as, to approve the decision of a court-martial)
verb
[UK: ə.ˈpruːv] [US: ə.ˈpruːv]

confirm [confirmed, confirming, confirms]▼(to assure)
verb
[UK: kən.ˈfɜːm] [US: kən.ˈfɝːm]