The phrase "a reasonable case that" is correct and usable in written English.
It can be used when presenting an argument or justification for a particular point of view or conclusion.
Example: "The researcher made a reasonable case that climate change is accelerating due to human activities."
Alternatives: "a valid argument that" or "a strong case that".
Chernow makes a reasonable case that it was mostly class resentment.
Substantively, the column made a reasonable case that Emanuel was a positive influence in some ways.
Given that the company just raised $3 million, Predixis must be making a reasonable case that it can bring in some real revenues.
"We have set out a reasonable case that we should continue to use our pound because it is ours as much as it is anybody else's.
It is impossible to make a reasonable case that Constand is hiding the truth that this whole thing was actually romantic.
Dr. de Cabo and his team "make a reasonable case" that the compound works by activating sirtuins, although they have not proved it, Dr. Vijg said.
We believe we have a very reasonable case that the decision was wrong.
One can make the reasonable case that preventive war against Hitler in 1933 would have altered history in a positive direction and might have spared Europe from the nightmare of WWII.
Congress also claims a constitutional principle: its right to "reasonable oversight".Enron seems a reasonable case for that right to be exercised.
Nevertheless, having regard to the information on the negotiating history which I have been given and to the arguments of the US Administration which I heard in Washington, I accept that a reasonable case can be made that resolution 1441 is capable in principle of reviving the authorisation in 678 without a further resolution.
The government may have a reasonable case to make that the rapid restructuring of Chrysler and the apparently generous allocation of spoils to the union are for the greater economic good.
