"has insured" is a correct and usable part of a sentence in written English.
It is the verb tense used to express completed action in the present perfect tense. Example: John has insured his car against theft.
Since 2001, Thailand's universal health insurance coverage (UHC) has insured low-cost health services for citizens, but disparities remain between and within 'marginal' groups compared with the majority ethnic population.
It has insured more than 80,000 people.
The twisted history of copyright law has insured an awkward passage into the digital age.
The most valuable display is a sample of pitchblende which he has insured for $500.
PBS has insured that 2008 will be a big year for Austen, too.
This constant tension has insured that I cannot rest on my laurels for one second.
Since 2006, the Federal Housing Administration has insured millions of low down payment loans.
Who has insured others against a default of the country?" he asked.
In recent years, Putin has insured that nearly all power in Russia is Presidential.
Leterman has insured Joan Lowell's life, Evelyn Herbert and Bob Halliday against loss of voice-$500.
