In sentences like:
- I get to see my father very often.
- I don't get to go to the park.
what does the phrase "to get to [verb]" mean? Does it mean that I am allowed to do something (see my father) or not allowed to do something (go to the park)? Or does it mean that it is respectively possible and not possible for me to do these things? Am I wrong in my assumptions and meaning is based on context? Are the affirmative and negative forms entirely different?