The phrase 'proactive on' is not correct or usable in written English.
If you want to describe someone as being 'proactive', you could say for example: He is always highly proactive when it comes to problem-solving.
"He can't be proactive on Social Security reform or Medicare funding, but this is one of the areas where he can.
No previous administration has been more proactive on issues of concern to minorities.
As evidence of his contrition, Mr Herkstroter launched Shell's policy of being proactive on environmental matters.
"There's been a missed opportunity by the UK in doing something proactive on the international stage.
"He's trying to be proactive on something that he can be proactive on," said James Thurber, director of the Center for the Congressional and Presidential Studies at American University.
Mrs. Whitman said President Bush "wants to be proactive on the issue; he wants to move forward".
Our goal is to demonstrate that UCL is proactive on race equality and we aim to achieve real results.
If Mr. Price seems proactive on health care, it is at least partly because he, like other Republicans, starts from a defensive stance.
Hence central statistical monitoring is not a stand-alone solution but needs to be complemented by proactive on-site monitoring.
Experience shows that proactive on-site monitoring (eg, peer review) can enhance the quality of data and trial processes (eg, participant consent).
Given the increasing awareness of medication safety problems in The Netherlands [ 3, 26, 27], however, a proactive on-ward involvement of Dutch hospital pharmacists (an active approach) seems desirable.
