Making promises: I promise that I will finish the job on time. I promise you that that’s the truth. I swear I will never leave you. I swear I won’t let you down. I assure you that I will return the book tomorrow morning. I assure you that I will be there on time. Believe me, I won’t make you disappointed. Trust me, I can do it. Useful Responses: Thank you. I believe you. All right. Keep your promise. I hope you will keep your words. Just let the time answer it.