what a machine wrote
Nemohu uvěřit, že odcházíte již.
what a Czech speaker actually says
Nemůžu uvěřit, že už odcházíš.
Machine translation gets the words right and the language wrong. We pay native speakers to fix it.
Drop in a YouTube or Vimeo link, pick a language, and a native speaker corrects the subtitles by hand — no re-translation, no guesswork.