The phrase "able to formulate a" is correct and usable in written English.
It can be used when discussing someone's capability to create or develop something, often in a professional or academic context.
Example: "The researcher is able to formulate a comprehensive strategy for addressing the issue at hand."
Alternatives: "capable of developing a" or "skilled in creating a".
But no one has been able to formulate a basic rule for calving.
"On the basis of this report they should be able to formulate a very clear plan of action," Pachauri said.
The University of Warwick wants to see that students are able to formulate a rational argument and write it to length.
Onsager also was able to formulate a general mathematical expression about the behaviour of nonreversible chemical processes that has been described as the "fourth law of thermodynamics".
Assuming that we should be able to formulate a more coherent definition, let us break the question down: does it matter that these are paintings – as opposed to photographs?
Finally, Wigglesworth was thus able to formulate a coherent theory of insect metamorphosis involving the selective activation by hormones of the insect's genetic components, which in turn determine its morphology and developmental character.
We await these before being able to formulate an appeal to what we believe is a fundamentally-flawed decision".
Although the Neo-Mohists were never able to formulate an exhaustive response to Hui Shi's radical relativism, his contemporary Zhuangzi (4th century BC) clearly found it to be an important stimulus for his own thought, and was definitely influenced by him when elaborating his own epistemological system.
In comparison with responding to propositions that each relate to one facet, being able to formulate an explanation that simultaneously includes several facets is arguably more difficult and, thus requires a deeper and more integrated level of conceptual understanding.
However, we were not able to formulate any conclusions on male patients as a separate group, as the number of men was limited.
As a consequence, any model of the learning process must be able to formulate how a net prediction is computed from the associative strengths of the 2 cue components.
