"spoke concerning" is correct and usable in written English.
You can use it when you want to indicate that someone spoke about a particular topic. For example: The professor spoke concerning the importance of critical thinking in college classes.
In another address, George Curry, editor-in-chief of the National Newspaper Publishers Association News Service and BlackPressUSA.com, spoke concerning several issues of importance to the African-American community, including affirmative action, community involvement, and role models.
Indeed, the day after the resolution vote, McGovern spoke concerning his fears that the vote would lead to greater involvement in the war; Wayne Morse, one of only two senators to oppose the resolution, sardonically noted that this fell into the category of "very interesting, but very belated".
The tale I took home from Reykjavik – where, from Douglas Coupland to James Fenton and Kiran Desai, a worldwide span of voices also spoke –concerned the value of small-country thinking.
Therefore the Lord will perform against Eli all things which he has spoken concerning his house.
Colorado passed a law this month that ensures the right to demonstrate, organize or speak concerning a political issue anywhere on campus.
In this sense, networking was defined in simple terms as a series of rating scales in which different discussion partners were defined, and participants specified whether these were people to whom they had spoken concerning their laboratory course research.
In 158 pages of adverts, sponsored features, ministerial forewords and articles from academics and think tank fellows, there's a barrage of impenetrable corporate management speak concerned with "growth", "free trade" and "economic governance".
The story, sung and danced rather than spoken, concerns a village visited 100 years earlier by a bizarre circus from the sea.
The aim of the study was to survey the usage and opinions among German speaking NICUs concerning tc blood gas monitoring.
Roughly speaking, aggregation concerns the structure by which different components combine to produce the overall input-output relations of the system.
The week before he was killed, I spoke with him concerning the matter".
