I can speak French, or at least a 'reasonable facsimile' of French. [=I can speak French but not very well]
Please be more 'reasonable'. There is no way I'll be able to finish all this work in so little time.
We finished within a 'reasonable' [='acceptable'] amount of time.
(..) It's now your duty to sit down and try and separate the facts from the fancy. One man is dead. Another man's life is at stake. If there's a reasonable doubt in your minds as to the guilt of the accused - a reasonable doubt-then you must bring me a verdict of not guilty. If there's no reasonable doubt, then you must, in good conscience, find the accused guilty. However you decide, your verdict must be unanimous. In the event that (..)1957 12 Angry Men