"Ho must be awfully sure of his balance."

Oh, I better make awfully sure he did not get out of control!

"You seem awfully sure of yourself," I said.

"You seem awfully sure of that," I snapped.

You sound awfully sure that he's up to something.

"You seem awfully sure of yourself, sir," said Broussard.

"You seem awfully sure of yourself about that."

"You seem awfully sure that it's the Grand Admiral."

'If so,' she said, 'they must be awfully sure of themselves.'

I'd advise you to reexamine your theology, bishop, and be awfully sure you're right.