Dear Professor Snape,
Did you ever attempt the Animagus transformation while you were at Hogwarts? You certainly have the magical power, capability and intelligence to accomplish it, and it would have been a great way to learn more about what the detestable Marauders were up to.
If you did, what did you become?
Thank you for your time.
Dear Inquisitive Badger,
No. Being an Animagus has never interested me.
It is wiser to be exceedingly good at selected spells, than to be merely adequate at all of them.