The phrase "working on revising" is correct and usable in written English.
You can use it when discussing the process of making changes or corrections to already completed work. For example: I was working on revising the novel I had recently finished when the power went out.
With their return to Tunisia, the professors are now working on revising their curriculum at home in conjunction with their new colleagues at MIT.
As well as getting the manual synch with the POs, I have also been working on revising some sections to read more smoothly.
Danny Kass, who, his brother Matt said, "has never been in a gym in his life," is working on revising his role in a popular winter sports video game that exhibits his signature trick, the Kasserole.
In addition to his work on Israeli-Palestinian peace negotiations, Mr. Kushner acts as an intermediary with Mexico, is pushing for reforms to federal prisons and is working on revising the North American Free Trade Agreement.
Arnold Schilder, executive director of the Dutch central bank and the chairman of the accounting task force of the Basel Committee, the central bank group working on revising bank capital rules, said that would satisfy regulators.
The contract was approved at the same time the board was working on revising its corporate governance, also under pressure from the S.E.C., a process that seemed likely to lead to disclosures of Mr. Grasso's pay.
Boeing has been working on revised software for the planes in question, and it should be installed by April, after what the Wall Street Journal reports were extended discussions between the company and the FAA.
The Ministry of Education, Science, and Technology (MEST) has confirmed that publishers are working on revised editions.
City staff and Kautz are working on revised definitions of group homes, which will be up for review by the Planning Board at a future meeting.
The Mets want Perez to work on revising his sloppy hitting approach.
Students will work on revising their own papers and editing papers of other students.
