The phrase "are continuing to determine" is correct and usable in written English.
It can be used when discussing an ongoing process of assessment or evaluation.
Example: "The researchers are continuing to determine the effects of the new drug on patients."
Alternatives: "are still assessing" or "are in the process of evaluating".
But research is continuing to determine if patients can go on to have children.
The data were measured as of last August, but the study is continuing to determine if the findings hold up over a longer period.
"The investigation is continuing to determine if Mr. Arnold's conduct on the night of the collision rises to the level of criminality," said Patrick Clark, a spokesman for the Queens district attorney, Richard A. Brown.
The attacks, he asserted, were overseen by the Muslim militant group Lashkar-e-Taiba, and he said investigations were continuing to determine the scope of Pakistani involvement in the attack, which killed 166 people and injured 304.
Work is continuing to determine pre-whaling abundance.
The trials were continued to determine any impact of the first thinning operation (opening of the canopy) on continued development of under-canopy vegetation.
Following the initial bioluminescent reading, samples were amended with 0.002% (w/v) n-decanal and the readings were continued to determine if additional aldehyde could increase light output.
If the condition improves, the diet should be continued to determine if there is complete or only partial control of the clinical signs.
It is important that surveillance be continued to determine if effective control persists or whether control and immunity wane and a booster dose becomes necessary.
Thus, molecular analysis of circulating RSV strains should be continued to determine whether ON1 has the potential to replace other RSV A strains in the years to come as did RSV B genotype BA during the past decade.
