The phrase "all of which exist" is correct and usable in written English.
It can be used to refer to a group of items or entities that are being discussed, emphasizing that they all have a presence or reality.
Example: "The museum features several ancient artifacts, all of which exist to tell the story of our past."
Alternatives: "all of which are present" or "all of which are real".
Instead, it covers a wide range of often unrelated conditions, all of which are also seen in people who are not mentally ill, and all of which exist on a continuum from the comparatively mild to the very severe.
These Chinook — one of six salmon species, all of which exist in the Elwha — are distinct from salmon that enter Puget Sound and those that spawn in rivers off the Pacific Ocean.
All of which exist to support Donald Trump".
It has its own legislature, laws, court system and chief executive, all of which exist under the umbrella of Chinese control.
As leaders, we represent the collective's deepest longings and aspirations, and the highest level of imagination and creativity, all of which exist in the collective consciousness but need a little stirring from a leader so that they can unfold.
There's no telling what Erdogan might have done if artists had decided to erect an effigy of Peter the Great, Michael Jackson or even Sylvester Stallone as Rocky -- all of which exist in spectacularly over-the-top glory elsewhere in the world -- in his country.
Virchow's triad states that conditions predisposing to thrombosis include pathological changes in blood flow, the vessel wall, and coagulability of the blood--all three of which exist in patients with cancer.
In the genome of D. melanogaster, four types of these genes exist as single-copy loci (all are minor spliceosomal snRNAs, none of which exist in C. elegans) and five as multigene families (Marz et al. 2008).
The larger boranes all consist of boron clusters that are polyhedral, some of which exist as isomers.
Harvard Facebook members belong to more than ten thousand, many of which exist only online.
Moreover, they seek this supply from up to five bio refineries, located across Australia and New Zealand, none of which exist currently.
