constatar angolul

ascertain [ascertained, ascertaining, ascertains]▼(find out; discover or establish)
verb
[UK: ˌæ.sə.ˈteɪn] [US: ˌæ.sər.ˈteɪn]

verify [verified, verifying, verifies]▼(to confirm or test the truth or accuracy of something)
verb
[UK: ˈve.rɪ.faɪ] [US: ˈve.rə.ˌfaɪ]