The phrase "able to establish when" is correct and usable in written English.
It can be used when discussing the capability to determine a specific time or condition related to an event or situation.
Example: "The researchers were able to establish when the phenomenon first occurred through careful analysis of the data."
Alternatives: "capable of determining when" or "able to identify when".
When it finally arrived, I attempted to establish when I would be able to benefit.
We are not able to establish whether or when local Lipschitzity can occur, but the next results give near misses.
Those employed were to receive certificates and to be able to establish themselves independently when they left.
But he said management had not been able to establish their exact whereabouts when the first fire companies arrived.
Authorities have not been able to establish with any certainty when and how these associations evolved, although lichens must have evolved more recently than their components and probably arose independently from different groups of fungi and algae or fungi and cyanobacteria.
Indeed, MSB-MALDI-MS approach can be able to establish differential peptide profiles when comparing healthy subjects versus patients with either COPD or asthma.
He was able to establish contact, and years later, when Cardinal Mindszenty threatened to leave the embassy, it was Cardinal König who persuaded his fellow prelate to stay put and avoid arrest.
In addition to protecting your privacy, services like this also make sense for travelers who want to be able to establish a local phone number when they're visiting family, friends or others out-of-state.
Kanin was able to establish herself as a solo writer when she moved into television.
Human α2 β1hi/CD133+-enriched β1hi/CD133+-enrichedstablish and maintain a prostate epithelium when transplanted in to an immunodeficells mouse, although an entire, functional prostate organ did not develop (Richardson et al, 2004).
