"certain shift" is a correct and usable phrase in written English.
It can be used to describe a specific or definite change in something, such as a person's attitude, a company's policy, or a societal trend. Example: The new CEO's leadership style brought about a certain shift in the company's culture, leading to increased productivity and employee satisfaction.
You see it in their body language: a certain look, a certain shift.
It was a hard letter to write because it also seemed to assume a certain shift in power.
It feels appropriate for the house of Valentino to open proceedings, not because they bridge the two nations – although as Italians who show in Paris they're a neat fusion – but because they epitomise a certain shift in aesthetic.
But as far as he is concerned, if the diminishing of his family's business can be pinned to a certain shift in retail expectations, yuppies -- or whatever the right term is for the region's surplus of young, moneyed transplants -- are the ones who caused it.
As a result of the economic crisis [in 2008], there has been a certain shift from the coastal areas, which rely on the global economy and have seen a lot of social conflict in their centralised urban areas, to central and north-western China.
"I expect a certain shift in foreign policy, with a little more focus on Nato and the EU and a little less on the [Balkan] region," said Andjelko Milardovic of the Institute for Migration and Ethnic Studies, a Zagreb-based thinktank, adding that the result was a pointer to the parliamentary election.
Many store executives also feel that the way they communicate with consumers might undergo certain shifts.
Similarly, different congenital heart diseases are characterized by certain shifts in the motor proteins.
But it also taught me how to look at businesses, and see how certain shifts in industries create opportunities.
But based on their own observations, several officers estimated that they accounted for as many as 80 percent of passengers searched during certain shifts.
But it's very much in this stylistic restlessness that the attempt to grapple with certain shifts in the collective sense of what it is to be human manifests itself.
