"find it unlikely" is a correct and usable phrase in written English.
You can use "find it unlikely" when expressing a feeling of skepticism towards something. For example, "I find it unlikely that I will be able to get a job in this economy."
While underreporting might have some influence on our results, we find it unlikely that underreporting is the main explanation of our findings.
Based on the above reasoning and the results, we find it unlikely that a lack of statistical power explains our findings.
Because significant and nearly maximal cell death occurs by this time point, we find it unlikely that a change in system xc− expression underlies its neurotoxic effect.
However, in this case we find it unlikely that these potential sources of bias could fully explain our findings.
If so, invalid cirrhosis diagnoses would lead to overestimation of the benefit of high socioeconomic status, but we find it unlikely that such a bias had a substantial effect on our findings.
Most analysts find it unlikely.
Owing to conflicting business interests and engineering demands, we find it unlikely the major browser vendors will voluntarily enable Do Not Track by default.
We find it unlikely that in passing the FAA Congress meant to leave the disposition of these procedural requirements to an arbitrator.
The hope that the wind and the sun and geothermal can provide all of our energy is a nice idea but I find it unlikely that that's possible.
Here's a question: Did you — like me — find it unlikely that Alicia would have talked so personally about her own divorce with a client?
I find it unlikely in the extreme that all those park rangers and scientists would have missed a species with such conspicuous markings.
