Roger always purchased insurance for the 10 years he owned an expensive speedboat. since he never had an accident the premiums he paid were

Since he never had an accident during the period, the premiums he paid were Expired

When you buy a premium from an insurance company, they will give you some sets of clauses which gives the condition within a specified period of time for the insurance to be paid.

If the none of the clauses were met during the period, your premium will expire, unless you renew it with your insurance company