The part of the sentence "we found none" is correct and usable in written English. You can use this expression when you are indicating that something has been searched for and not been found. For example: We searched every corner of the room, but we found none of the missing items.
"We found none".
We found none, and the Nepali student accompanying us translated that the boy had not seen them for a while.
This, we learned, was called Pele's hair, and although we searched for the smooth, tear-shaped lava stones called Pele's tears, we found none.
During an on-the-air conversation with Cynthia McFadden, a "20/20" anchorwoman, Mr. Stossel said, "It's logical to worry about pesticide residues, but in our tests, we found none on either organic or regular produce".
"We find none in the SEC Insight newsletter's claims, but investors want to shoot first and ask questions later".
In the war prison, we find none of the techniques of training, labor discipline, or rehabilitation associated with the penitentiary of the Enlightenment reformers.
Thus if South-East Asia or any other region were the origin for the small haplotype we would expect at least one of these haplotypes to cluster with the small dog haplotype, and we find none.
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union