The phrase "a possibility to keep" is correct and usable in written English.
It can be used when discussing options or opportunities that allow for retention or continuation of something.
Example: "We have a possibility to keep our current supplier if they can meet our new requirements."
Alternatives: "an option to retain" or "a chance to maintain".
"If a young woman does not meet an open-minded gynecologist-oncologist, she is not even aware that a possibility to keep her fertility exists," said Dr. Michel Roy of Laval University in Quebec.
"It is not just the chaos of the schools and hospitals, but the cost of living and the huge traffic jams, and Eduardo Paes is watching all this … The urbanisation of Vila Autódromo has appeared to Paes as a possibility to keep some political capital at a time [when] he is losing popularity".
Moreover, the use of the buffer solution provides a possibility to keep constant ionic strenght, and minimize the negative influence of different admixtures on the effectiveness of terbium preconcentration.
Local prisons allow considerable freedom with a possibility to keep a job and family relations in the community, even for those who are convicted with murder.
Given that there are a number of other VoIP as well as non-VoIP services available today, offering this option to customers seems like more of a formality than an actual possibility to keep the service going.
A concrete idea was an electronic exercise diary with the possibility to keep track of performed exercise including notes on how it worked and was experienced.
The web-based platform allows user accounts with the possibility to keep raw files and analyzed data in a workspace of unlimited size.
Our approach offers the possibility of relatively simple and reliable monitoring of new data and tree robustness, that is, the possibility to keep track of the phylogenetic signal in a taxonomic group.
van Vuuren, D. P. et al. RCP2.6: exploring the possibility to keep global mean temperature increase below 2°C.
On-farm application of the system would give the possibility to keep sows unconfined until the end of nest-building period.
