1.I wish I knew what to do about the problem.2.I wish you didn’t have to go so soon3.I wish I hadn’t said it.4.I wish I had studied harder at school.5.I wish I knew his telephone number1.I regret having had to speak in such general terms.2.The President: I regret the change of meeting place.3.No, I regret not saying it earlier.4.I regret being too weird to make friends.5.My dear friend, I regret I have not seen you or yours for some time.