"do trials" is correct and usable in written English.
You can use it as a verb when describing a process of testing something. For example, "The researchers decided to do trials to test the new drug."
Do trials reduce uncertainty?
"We met them a few weeks ago to see whether they would do trials here.
Last Saturday, Esther Kim did an extraordinary thing at the Olympic tae kwon do trials in Colorado Springs.
That would require vastly expensive clinical trials, and because food cannot be patented and sold for many dollars per dose, supplement makers have little incentive to do trials.
So, how should we do trials of innovative technology in the future, to avoid the dead, and elitist, hand of the peer reviewers?
Last Saturday, Kim, 20, reached the finals of the flyweight competition in the United States tae kwon do trials in Colorado Springs.
"Nobody does trials like Americans," Professor Butler said.
But Cephalon is doing trials to find other uses -- for anxiety, for example.
They did trials and one thing led to another and it escaped.
I spoke to an Iraqi living in Canada who began doing trials when he immigrated.
He is also doing trials with Decathlon, the sports retailer and gym operator.
