She was kind of mysterious at the beginning but through the play she became less mysterious.
This is true. A famous example of this is a poem Jabberwocky by Lewis Carroll which is completely made up of nonsensical words yet is entirely grammatically correct and can be analyzed as such.
Answer:
I assume you mean 'imperative,' not 'impartive.'
You could say:
Run!!!!!
Get down! Play dead!
Explanation: