The phrase "ability to guarantee" is correct and usable in written English.
It can be used when discussing someone's capacity or capability to provide assurance or certainty about something.
Example: "The company prides itself on its ability to guarantee customer satisfaction with every purchase."
Alternatives: "capacity to ensure" or "capability to promise".
But our ability to guarantee each patient a good death is about equal to our ability to guarantee them a good life".
Attacks elsewhere would call into question Putin's ability to guarantee security.
The country was at war over Manchuria, however, and Kreuger doubted the Nationalists' ability to guarantee a monopoly.
Cooperation with the United States to open new routes for food -- by river barge or through airlifts -- depends on the military's ability to guarantee safe passage.
"A state must never lose the monopoly on the use of force," he said recently, "and the ability to guarantee the safety of a summit".
It also preserves stability of hierarchical control, having the ability to guarantee stability, predictability and global optimization of the system performance.
This is the fundamental conundrum facing new media producers who rely on hyper-distribution to build brands and audiences but who weaken their pricing power and ability to secure guaranteed dollars by giving away their videos.
That provision clearly limits its ability to borrow, guarantee or take on obligations of more than $30 billion.
Existing routing protocols lack the ability to formally guarantee quantitative properties of reliability and timeliness at the same time.
"We did discuss the question of the ability to try to guarantee that it's going to the right people and to the moderate Syrian opposition coalition".
Speaking after meeting the rulers of Qatar - one of the main weapons suppliers to rebels, Kerry said: "We did discuss the question of the ability to try to guarantee that it's going to the right people and to the moderate Syrian opposition coalition and I think it's really in the last months that that has developed as a capacity that we have greater confidence in".
