1.   My back hurts.

2.   All Adam Burt knew for the past month is that his back hurt.

3.   He bristles at people with back problems who ignore warnings and ride roller coasters and then complain that their back hurts.

4.   Her back hurt so much in the biking portion of the triathlon, she was forced to dismount and rest.

5.   Her back reportedly hurts.

6.   His back hurt so much that he had an appointment scheduled with a specialist the next day.

7.   Her back hurt.

8.   Her back hurts most of the time.

9.   His back sometimes hurts and he has a bum knee.

10.   His back hurts, as does his throwing arm.