The phrase 'still not achieved' is correct and usable in written English.
One example of how it could be used in a sentence is: "Despite all their hard work, the team's goals have still not been achieved."
More than a month after the terrorist hijackings, aviation security has still not achieved the standards travelers have a right to demand.
He added that Fatah recognized Israel long ago and had still not achieved a peace deal, and that Israel still did not have fixed borders that could be recognized.
The murder of the British student Meredith Kercher in 2007 in Perugia was a brutal crime that, after seven years of protracted legal proceedings against Amanda Knox and Raffaele Sollecito, now re-convicted of her murder, has still not achieved a conclusion.
Why then is gender equality still not achieved at the highest levels?
However graphene production - still not achieved on an affordable and industrial scale - is in the project's sights.
In solid propellants, aluminum is widely used to improve performance, yet theoretical specific impulse is still not achieved largely because of two-phase flow losses.
But PDVSA, the state oil company, suffers from a shortage of both skilled staff and cash.Despite the outlay, Mr Chávez may still not achieve his goal.
"You could spend a country's entire gross domestic product on P.R. and still not achieve the kind of exposure that Hollywood coming here can bring," said Geza Szocs, state secretary for cultural affairs in Hungary.
At the same time, he said, "we are aware that the new approach and the institutional changes within the judiciary are still not achieving the results that we all desire".
In situations when even hardware upgrades can still not achieve sufficient performance, however, we would like to emphasize that partial data is still important.
Against this kind of bin-packing problem, one may apply best fit decreasing (BFD) or first fit decreasing (FFD) heuristic algorithms to mitigate this issue, but still not achieve perfect network utilization and bisection bandwidth.
