He attempted to call the spirits of the dead using an ancient ritual.

He tried to call a spirit using an ancient ritual.

This polynomial is represented in descending powers.

He was demoted.

He was demoted because of his poor performance.

Due to the economic crisis, the company decided to reduce everyone's salary.

His salary was reduced because the company's financial situation worsened.

My grandmother's forty-ninth day is next week.

Wow, this is surprising.

I was surprised to hear his story.