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Questions & Answers about Cavea plena est.
What case is cavea, and how can I tell?
Cavea is nominative singular.
You can tell because it is the subject of the sentence: the arena / enclosure / seating area is full. In Latin, the subject is normally in the nominative case.
Also, cavea is a first-declension noun, and its nominative singular form often ends in -a.
Why is it plena and not plenus or plenum?
Because plena has to agree with cavea.
The adjective comes from plenus, plena, plenum = full. Since cavea is:
- feminine
- singular
- nominative
the adjective must also be:
- feminine
- singular
- nominative
So:
- masculine: plenus
- feminine: plena
- neuter: plenum
Here, plena is the correct form.
Is plena an adjective here, or does it mean something like a noun?
It is an adjective here.
More specifically, it is a : it describes the subject after a form of .