I cannot, really; I will not.

It's very wrong; you should be more guarded in your expressions.

It was bad enough when you and I used to be alone together, but under existing circumstances, I can't endure it, really.
No.

I cannot, indeed.' 'You are quite right!' exclaimed the other, exchanging looks with Martin.

'and I am quite wrong, Tom, I don't know how the deuce we fell on this unlucky theme.