"are you sure" in German Are you sure? Bist du sicher? Detailed translations for "are you sure" Are you sure? Are you sure? Bist du sicher? And I swear to you, Phil, that yesterday it was full. - Are you sure? Source: opensubtitles.org Corpus by OPUS Request review - Bist du sicher? It isn't speaking to some deeper truth. Are you sure? Source: opensubtitles.org Corpus by OPUS Request review Bist du sicher?