In Latin, expression of existence and non-existence are handled by a Relative Clause of Characteristic (subjunctive!).
Expressions of Existence
- sunt quī discessum animī ā corpore putent esse mortem: there are some (there exist some) who think that the departure of the soul from the body constitutes death
- erant quī hōc cēnsērent, there were some of this opinion
- quis est quī id nōn maximīs efferat laudibus: who is there that does not extol it with the highest praise?
- sunt quī orbem arsum modō videre velint: some men just want to watch the world burn.
Expressions of Non-Existence
- nihil videō quod timeam: I see nothing to fear.
- nihil est quod adventum nostrum extimēscās: there is no reason to fear our arrival.
- nēmō est qui SuīLocō tamen ūtātur: no one uses MySpace anymore.
A&G add that with these phrases the indicative is possible but less common, and point out that certain grammar books reference these phrases as ‘Relative Clauses with an Indefinite Antecedent.’
The Essential AG: 535a, 525an1, 535an2