Situation 1: My friends are playing outside. My leg is injured. Sitting at home, I'm thinking:
- It's pity that my leg is injured. I could be playing with them now.
Situation 2: My friends are playing outside. My leg is good. Sitting at the computer, I'm thinking:
- I could be playing with them now.
Q) Did I use the italicized sentence correctly in both the situations? If so, doesn't the italicized sentence, or rather the modal "could" with the progressive aspect, depend on the reason why I'm not playing with them now, because in (1) there is an obvious reason (my injured leg) why I'm not playing but in (2) there is no apparent reason why I'm not doing so?