Explanation of Latin Cases in a Sample Sentence

Nominative Case

• Usage: Used for the subject of a sentence, i.e., the entity performing the action of the verb.
• Example: Ancilla laborat. (“The maid works.”)

Accusative Case

• Usage: Primarily for the direct object of an action. It is also used to indicate duration of time and extent of space. It is also used to show arrival at, nearness to, motion towards
• Example:
  • Dominus ancillam laudat. (“The master praises the maid.”)
  • Ancilla unam horam ambulat. (“The maid walks for an hour.”)
  • Ad villam adveni. (“I arrived at the house”)
  • Prope villam habito. (“I live near to the house”)
  • Ad ancillam cucurri. (“I ran towards the maid”)

NB: When the accusative is used as other than the direct object, it needs a preposition to show exactly how it is being used.

Genitive Case

• Usage: Indicates possession, association, partitive (indicating the whole of which a part is taken), description, and measure.
• Example:
  • Liber ancillae est. (“It is the maid’s book.” – possession)
  • Poculum plenum vini ancillae. (“A cup full of the maid’s wine.” – partitive)
  • Femina magnae virtutis est ancilla. (“The maid is a woman of great virtue.” – shows quality)

 Dative Case

• Usage: Used for the indirect object, indicating to whom or for whom an action is done. It also expresses the beneficiary, possession (less directly than genitive), and reference.
• Example:
  • Dominus ancillae rosam dat. (“The master gives the maid a rose.” – indirect object)
  • Ancillae nomen est Maria. (“The maid’s name is Maria.” – possession, often in existential contexts)
  • Ancillae grave est onus. (“The burden is heavy for the maid.” – reference)

The dative is also used with about fifty verbs – non credo puero (“I do not trust the boy”), etc

Ablative Case

• Usage: Very versatile, used to indicate means, manner, agent (with prepositions “a/ab” meaning “by”), cause, comparison, and place from which as well as separation.
• Example:
  • Ancilla aquā lavat. (“The maid washes with water.” – means)
  • Ancilla magnā cum curā operatur. (“The maid works with great care.” – manner)
  • Ancilla a dominā vocata est. (“The maid was called by the mistress.” – agent)
  • Ancilla morbo mortua est. (“The maid died from illness.” – cause)
  • Ancilla sapientior sorore est. (“The maid is wiser than her sister.” – comparison)
  • Ancilla Romā venit. (“The maid came from Rome.” – place from which)
  • Cum ancillā sedeo (“I am sitting with the maid”)
  • Pro ancillā sedeo (“I am sitting in front of the maid”)

Again, because the ablative has so many possible meanings, it is generally used with a preposition. Indeed, without a preposition, it is often hard to understand.