'almost correctly' is correct and usable in written English.
You can use it to describe a situation where someone has done something almost correctly, such as when someone has almost completed a task correctly. For example, you could say, "He wrote the report almost correctly, but there are a few small mistakes."
Big props goes out to Joe W. for almost correctly guessing the total storage capacity of the CrunchGear staff.
The buildings are almost correctly classified and a few are wrongly fixed into forest owing to the surrounding trees around the houses.
As can be seen, the sub-carrier numbers of MIMO radar signal are almost correctly estimated when the value of SNR above 0 dB.
This helps consumers to predict almost correctly if not correctly the cost associated with using either an incandescent bulb or an energy-saving light bulb.
It has been revealed from our study that the intensity distribution inside the shadows shown in the scattering difference image contains little of the scattered component of the PSF and matches almost correctly the extension of the PSF core profile.
"My colleague quoted me correctly -- almost correctly," he said.
In the previous PLS-DA predictions, the pixels in the F. subglutinans image were almost 100%% correctly predicted, while in this mosaic, only 80.1%% of the pixels were correctly predicted with 4.9 % pixels not classified.
This was seen, almost certainly correctly, as a reproach to her more demographics-and-turnout-centered operation.
The governor has warned, repeatedly and almost certainly correctly, that leaving the banks broadly unreformed will lead to a fresh and perhaps even more serious crisis.
It left Mike Dean with a big decision to make but, almost certainly correctly, the referee refused to buy Sunderland's claims.
Agüero saw a penalty appeal against Chancel Mbemba turned down (almost certainly correctly) after being very smartly played in by De Bruyne and Karl Darlow was required to make a superb save to keep out Jesús Navas's curving shot.
