If you are trying to change the sentence to past tense.
1) How long have you had these gloves? I have had them for years!
2) George collected matches since he left school. Now he collects so many that he doesn't know where to put them.
3) Customers rang up all morning complaining about getting incorrect bills - I know. Something went wrong with our computer.
4) How long have you owned this house? I have lived here since 1982.
5) Where did you put my key? I cannot find it.
6) Where on earth were you? I waited for so long.
7) I think I can smell smoke on Debbie's clothes. I am sure she smoked.
8) He wrote a travel guide for the last six months.
9) I tried to remember his name all morning but I cannot.
10) You are so dirty! What did you do?