What is the verb form of certified?
verb (used with object) , cer·ti·fied, cer·ti·fy·ing. to attest as certain; give reliable information of; confirm: He certified the truth of his claim.
verb (used with object) , cer·ti·fied, cer·ti·fy·ing. to attest as certain; give reliable information of; confirm: He certified the truth of his claim.