Final answer:
A fee simple on a condition subsequent estate can be recovered through reentry or power of termination.
Step-by-step explanation:
A fee simple on a condition subsequent estate can be recovered through a process called reentry or power of termination. This occurs when the grantor, who placed the condition on the estate, takes action to assert the right to terminate the estate if the condition is breached. The grantor typically needs to comply with specific legal requirements, such as giving notice to the grantee.