"verbal ability" is a correct and usable phrase in written English.
For example, "The author demonstrated impressive verbal ability in her speech."
When Prebleman learned of her verbal ability, he decided to help her write her life story.
They ask their teachers to exhibit not only verbal ability and subject-matter proficiency, but also knowledge of teaching.
The child was never allowed to develop to the point of complex verbal ability before being medicated.
Since Kristie's verbal ability was severely limited, Mrs. Vaughan planned to prepare her daughter for her new life by showing her snapshots.
They are lawyers, social workers and teachers with "excellent verbal ability" and significant life experience, who are given additional training in counseling.
Alternatively, if you become convinced of your dog's verbal ability, give her bus fare and tell her to return home when she likes.
They said General Gehlen, who was not a good speaker, also valued the younger man's verbal ability and found him a valuable and efficient staff officer.
If you wanted to picture how a typical genius might develop, you'd take a girl who possessed a slightly above average verbal ability.
And, regardless of background, children with lower general verbal ability and those who have difficulty with phonetic processing seem to struggle.
This was not due to their better verbal ability.
Their verbal ability is more developed, and they are keen on listening carefully.
