The phrase "have worked on defining" is grammatically correct and can be used in written English.
It is typically used to describe past actions that have been ongoing or continuous. Example: I have worked on defining the company's core values for the past month.
We did not explicitly explore differences in definitions with interviewees but this did not arise as a problem because we had selected interviewees who had worked on studies which we had defined as mixed methods research.
Woolf, meanwhile, had worked on a string of novels that had defined her pre-eminence in British modernism: Jacob's Room (1922), Mrs Dalloway (1925) and To the Lighthouse (1927).
Ask anyone that has worked on my teams at Visa, HP or Disney and they will tell you that defining a "typical day" is almost impossible.
In terms of third-party mediation the Syrians are in favour of indirect talks through Turkey, which has already worked on defining the 1967 border.
For users, the new dashboard groups different tool sets into "behavioral clumps," and has worked to define workflows based on different user types.
Since then, groups have been working on defining the criteria for meaningful use.
A CCTO-based sensor that only few researchers' have worked on can be defined as an analytic device, which consists of an immobilized layer of CCTO on a solid support.
"It's certainly an improvement and we have worked hard on the areas we had defined last year.
At one point during our work together, the group had agreed on a strategy and was starting to work on defining the tactics for implementing it.
Representative Charlie Norwood, a Georgia Republican who has worked closely with Democrats on a bill to define patients' rights, said the Supreme Court was virtually begging Congress to act.
