The phrase "able to improve on" is correct and usable in written English.
It can be used when discussing the potential for enhancement or advancement in a particular area or skill.
Example: "With consistent practice, I believe I am able to improve on my public speaking skills."
Alternatives: "capable of enhancing" or "able to advance in".
However, by combining clinical and molecular data, we were not able to improve on known predictors.
No one was able to improve on their qualifying times from the previous day.
These advances also help answer the question of why, after so many years of concentrated research effort to understand the behavior of buckling-critical thin-walled shells, one has not been able to improve on this conservative lower- bound design philosophy in the past.
Damon Hill was able to improve on his disastrous Friday session before the red flag, improving his time by one second and qualifying fourth as a result.
We have not been able to improve on that for lack of funds.
We are delighted to have been able to improve on last year's excellent result.
The primary hypothesis of the Pelican study is that a self management treatment based on HRQL information (Pelican instrument) is able to improve HRQL on the PAQLQ-S (> 0.5 points) in children with asthma from 6 11 years old in primary and specialized care with a proportional difference in favour of intervention relative to usual care of 25% of children.
The researchers used 18 moderately-trained runners for a seven-week program of 10-20-30 training and found that they were able to improve performance on a 1,500-meter 1,500-metereconds and almost by a minute on a 5-km run -- and this despite a 50 percent reduction in their typical amount of training time.
No matter how well the G.O.P. candidate does in the presidential race, Republicans may not be able to improve much on their razor-thin margin in the House.
Saints will remain stuffy and hard to beat, but with a thinner squad than last season and the potential sale of talisman Stevie May, they are unlikely to be able to improve much on last season's finish.
"They are a part of the communities themselves and are able to improve health on a grassroots level by going door-to-door and talking to people about any health issues affecting them.
