Hi,<br/><br/>Did John use to take classes at the local college?<br/><br/>Yes, John used to take classes at the local college.<br/><br/>No, John didn't use to take classes at the local college.<br/><br/>No, John didn't use to take classes at the local college, but he is now.<br/><br/>1) Do both No replies work? Or only the 2nd No reply?<br/><br/>2) Should I use past simple for the reply if John is not taking classes at the local college now?<br/><br/>3) If John is taking classes at the local college now but not before, can I use past simple or is "used to" more appropriate?