The phrase "are inexistent" is correct and usable in written English.
It can be used to indicate that something does not exist or is not present.
Example: "In this context, certain variables are inexistent, leading to incomplete results."
Alternatives: "do not exist" or "are nonexistent".
The other reality is that while I now spend a significant amount of time as director of CCARE whose work is renowned worldwide, funds that would allow me to do this work full-time are inexistent.
For example, some widely used C# constructs, like properties and structures ("structs"), are inexistent in Java.
For example, some C# constructs, like properties and structures ("structs") are inexistent in Java.
On-device localization methods also have advantages over vision-based approaches as limitations such as occlusion or the limitations in low-light conditions are inexistent and that the whole venue space can easily be covered.
I trust by now you've read Apple's letter claiming that there's absolutely nothing wrong with the antennae on the iPhone 4, and that any real reception issues are inexistent and merely a result of faulty displaying on Apple's part, which it intends to fix in the coming weeks.
Finally, besides evolutionary inferences, an important aspect of this kind of work is the identification of components of cellular complexes in eukaryotic lineages for which data are inexistent or sparse, thus providing candidates for experimental tests in these groups.
These files were not written to be read by the public so in some cases comments might be inexistent, sketchy, or misleading.
There is also a need to govern (or control) the atomic information system architecture's patterns for business transformation projects; unfortunately an adaptable atomic information system architecture pattern for such projects is inexistent.
I say "located," because I'd decided to dispense with my maps -- on this soon to be inexistent littoral, I wanted to feel, as much as possible, like a long-shore drifter: human clay being carried southwards by the current of my own obsession.
Baseline emissions are treated as if they had been inexistent.
The "location of intelligence" at Level 0 is inexistent.
