11.   I dislocated my shoulder playing football.

12.   I hurt my shoulder when I was playing football.

13.   I wondered if any of them had ever played football with Romario.

14.   It was his dream to play professional football one day.

15.   It was raining, so we had to play football in the gym this afternoon.

16.   James strained his right knee playing football.

17.   The boys are playing football in the garden.

18.   The boys wanted to play football.

19.   The Marauders going south to play football?

20.   The most ostentatious team in professional sports made the Decision to play football and let the histrionics take care of themselves.