нареч. wittingly, deliberately, knowingly
admittedly, certainly давать заведомо ложные показания – perjure oneself
wittingly/deliberately give false evidence заведомо зная – being fully aware
заведом|о - (явно) obviously
(известно) known to be после сущ.
давать ~ ложные показания give* evidence known to be false, give* deliberately falsified evidence
~ый (явный) obvious
(известный) notorious
~ая ложь obvious lie
~ый лжец notorious liar