They concocted a potion, and when it was ready they put it into a goblet.
By way of punishing me for this imprudence, she concocted with Talbot a plot.
Traddles and I laying our heads together apart, while Mr. Dick anxiously watched us from his chair, we concocted a scheme in virtue of which we got him to work next day, with triumphant success.
I can't see how your brilliant mind concocted this whole scheme in almost no time. And to be honest, I can't even see why Medical Lobby decided to save me at the last minute and sent you to do the job.