I know you are not so ill-natured.

What makes you so ill-natured?

"I wonder what has made you so ill-natured," she said at last.

'I can't think why your sister should be so ill-natured.'

"You won't be so ill-natured, Mrs. Boyce,-afterall that I've done for the church."

"And it's often a wonder to me," said Miss Mackenzie, "how gentlemen can be so ill-natured."

'Oh, Linda, you are so ill-natured.'

"How could you be so ill-natured?"