How to use "deny" in a sentence

That there are persons in one section or another who seek to destroy the Union at all events, and are glad of any pretext to do it, I will neither affirm nor deny; but if there be such, I need address no word to them

I do not forget the position, assumed by some, that Constitutional questions are to be decided by the Supreme Court; nor do I deny that such decisions must be binding, in any case, upon the parties to a suit, as to the object of that suit, while they are also entitled to very high respect and consideration in all parallel cases by all other departments of the government

I venture to deny that it is unconstitutional

A great lover of the British Empire has said that under the British constitution even a successful rebellion is perfectly constitutional, and he quotes historical instances, which I cannot deny, in support of his claim

Only a foolish optimist can deny the dark realities of the moment.

'I deny it!'

The poor man's blue-lipped mouth hung in a permanent gape, as if he were trying to deny all of the accusations of suicide that were to come.