Mr. Vavasor knew that it was his duty to do something,--to take some steps with the view of preventing the marriage which his daughter meditated; but he did not know what that something should be, and he did know that, whatever it might be, the doing of it would be thoroughly disagreeable. 
Mr. Vavasor knew that he ought to do something to prevent his daughter marrying George Vavasor; but he did not know what that something should be, although he did know that doing it would be thoroughly disagreeable.
