Per quanto uno ne sappia
As far as one knows
The best of one's knowledge / From one's knowledge
As far as one knows
The best of one's knowledge / From one's knowledge
Esempi
Per quanto ne so, oggi la segretaria non è venuta perché è malata
As far as I know, today the secretary didn't come to work because she is sickPerché mai hai scommesso su quel cavallo? Per quanto ne sappia io non ha mai vinto una gara
Why on earth did you bet on that horse? He never won a race, to the best of my knowledge