(a) Converse: If a person is a professional hockey player, then the person is a professional athlete.
\(\boxed{\text{If a person is a professional hockey player, then the person is a professional athlete.}}\)
(b) Contrapositive: If a person is not a professional hockey player, then the person is not a professional athlete.
\(\boxed{\text{If a person is not a professional hockey player, then the person is not a professional athlete.}}\)
(c) Inverse: If a person is not a professional athlete, then the person is not a professional hockey player.
\(\boxed{\text{If a person is not a professional athlete, then the person is not a professional hockey player.}}\)