Possible Clues:

• "I'm not lying about that"
• Words repeated in '___ what ___'
• "Yes, correct"
• "You are correct"
• '___ certain' (Magic 8 Ball response)
• 'Do you know what time ___?'
• Possible reply to "Can that be real?"
• “Can confirm”
• 'Verily'
• 'No kidding'