1) Collateral 2) Confirmative 3) Confirmatory 4) Confirming 5) Corroborative 6) Corroboratory 7) Substantiating 8) Substantiative 9) Supportive 10) Validatory 11) Verificatory 12) Verifying 1) Confirmative 2) Confirmatory 3) Corroborative 4) Corroboratory 5) Substantiating 6) Substantiative 7) Supportive 8) Validatory 9) Verificatory 10) Verifying