"diminish efforts" is a perfectly acceptable construction in written English.
You can use it when you want to describe a situation in which someone is making less effort than before. For example: "Over the course of the semester, Peter's efforts to understand the material diminished."
Although the community of practitioners of rural performing arts has been diminishing, efforts have been under way to revive as well as recontextualize some of the indigenous traditions so that they resonate with an increasingly cosmopolitan Philippine society.
Draper and colleagues had noted deterioration in the recording of Indigenous status in mortality data and attributed this to diminishing efforts to follow up missing data.
The Zephyr has always exemplified for us the uncomfortable technocratic doctrine of diminishing effort.
David Albright, president of the Institute for Science and International Security, a private organization in Washington that tracks nuclear proliferation, said the diminishing effort needed to enrich at higher levels meant Iran would need fewer working centrifuges.
Falsely believing his campaign is ahead; he may diminish his efforts and consequently fall behind even more.
"There is a legitimate concern with the legislation as it's written now," he said, "and my concern is that if it passes, it will diminish the efforts those of us have made in the organic movement".
Which is not intended to diminish the efforts of Key.
It would be wrong to diminish the efforts of England's best performers – Billy Vunipola and the Youngs brothers enhanced their reputations – but ultimately Robshaw's men fatally lost sight of the one thing that really mattered.
But a recognition of this legacy should reinforce our resolve, not diminish our efforts, to achieve an ideal that is within our reach, and is consistent with our best ideals.
