The imperfectives are important for understanding the verb aspect.

The imperfectiveness of the situation was evident.

The imperfectability of human nature is a fundamental aspect of our existence.

Her painting skills are imperfectible.

The imperfectibility of human nature is a fundamental aspect of our existence.

She was singing imperfectively.

She danced imperfectibly, expressing her raw emotions through every movement.

The artist embraced the imperfectnesses in their artwork.

He imperfected the painting with his careless brushstrokes.

She is imperfecting her painting skills.