Is there any end in sight to the deepening economic crisis?

Sami's sadness deepened into a depression.

The mystery deepens.

The mystery only deepened.

They did not deepen the holes.

Devising various ways to do things will deepen my interest.

A funeral is a pageant whereby we attest our respect for the dead by enriching the undertaker, and strengthen our grief by an expenditure that deepens our groans and doubles our tears.

This is a unique friendship that has deepened over the years.

Religion and science approach each other as knowledge deepens. But this process is endless.

You deepened the holes.