The phrase "a guarantee to keep" is correct and usable in written English.
It can be used when referring to a promise or assurance that something will be maintained or upheld.
Example: "The company provided a guarantee to keep the product warranty valid for five years."
Alternatives: "a promise to uphold" or "an assurance to maintain".
Energy secretary Ed Davey said the auction had been a great success and would act as a guarantee to keep the lights on.
A closing date was on the horizon, and after some not entirely amicable back-and-forth, the Broadway producers, Jeffrey Seller, Kevin McCollum and Allan S. Gordon, agreed to a guarantee to keep the show running through June 1.
Last year at the U.S. National Weather Service, IBM offered a free demo machine and a guarantee to keep its systems up-to-date, even writing software drivers for components IBM doesn't build, such as video cards.
Released in 1973, the Timberland 6" came with a guarantee to keep its wearer's feet dry.
One consumer advocate involved in the effort to get the financial reform bill through Congress speculated that the "guarantee" could simply be a guarantee to keep Warren involved in consumer protection without actually nominating her for the role.
Where can I find a service that will guarantee to keep my confidential data in the UK?
At present there is no readily available cryptographic technology that can guarantee to keep a communication unreadable for perpetuity and there is a very real risk that even today's best algorithms will not last for the natural human life of today's intelligence sources.
It's one thing simply to publish data – which is a great start – but the best guarantee to keep on supplying data to a high level is businesses and organisations that depend on that data.
He and Treasury Secretary John B. Connally successfully lobbied for congressional approval of a government-backed $250-million 250-milliontee to keep then-Burbank-based loanheed Aircraft Corp. afloat in 1971 after the bankruptcy of British-based Rolls Royce Ltd., which was manufacturinguarantee for a new Lockheed passenger aircrafto the L-1011.
Only the Condorcet method can guarantee to keep the remaining candidates in the same order when other candidates are removed.
IAG would also guarantee to keep Aer Lingus's brandname and to maintain its headquarters in Ireland.
