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The cases and the moods: a review

The dative of purpose, description by genitive or ablative, and every use of the cases and the subjunctive in one place.

LatinAdvanced Latin · ReviewAbout 4 min: 2 reading, 2 practiceUpdated

After this lesson you can
  • Use the dative of purpose (double dative)
  • Describe with the genitive (measure) or ablative (physical features)
  • Name the main uses of each case and of the subjunctive
Latin Level 3: constructions: lesson 14 of 14
  1. Advanced Latin · The subjunctive
  2. amem, regam, sim: the present subjunctive 4 min
  3. ut, nē, quī: purpose clauses 3 min
  4. amārem, essem: the imperfect subjunctive and the sequence of tenses 4 min
  5. amāverim, amāvissem; indirect commands 3 min
  6. possim; "I fear that …" 3 min
  7. Advanced Latin · Participles and irregular verbs
  8. amāns, amātus, amātūrus, amandus: participles 3 min
  9. volō, nōlō, mālō; the ablative absolute 4 min
  10. Advanced Latin · Clauses
  11. fīō; "so … that": result clauses 4 min
  12. "The man to lead us": clauses of characteristic 3 min
  13. cum: when, since, although 3 min
  14. Advanced Latin · Participles and irregular verbs
  15. amandī, ad urbem videndam: gerund and gerundive 4 min
  16. Advanced Latin · Clauses
  17. eō; "he said that …": indirect statement 4 min
  18. ferō; the dative with compounds; indirect questions 4 min
  19. Advanced Latin · Review
  20. The cases and the moods: a review 4 min

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Pairs with D'Ooge, Latin for Beginners (Ginn, 1909), Lessons LXXV–LXXIX, §§ 435–458

What it is

Two last constructions:

  • Dative of purpose, often with a second dative of the person affected: Hoc erat magnō impedīmentō Gallīs. → This was a great hindrance to the Gauls. Duās legiōnēs praesidiō castrīs relīquit. → He left two legions as a guard for the camp.
  • Description needs an adjective. Measurements go in the genitive (fossa duodecim pedum, a ditch of twelve feet); physical features in the ablative (homō magnīs pedibus, a man with big feet); other qualities in either (vir summā audāciā or summae audāciae, a man of the greatest boldness).

The cases at a glance:

CaseMain uses
Genitive (of)possession; the whole (partitive); description
Dative (to, for)indirect object; special verbs; compounds; with adjectives; purpose
Accusativedirect object; predicate accusative; subject of infinitive; after prepositions; extent; place to which
Ablative: with, bycause, means, accompaniment, manner, measure of difference, absolute, description, specification
Ablative: fromplace from, separation, agent, comparison
Ablative: in, atplace where, time when or within which

The subjunctive is used for: purpose (and indirect commands and fearing), result, characteristic, cum clauses, indirect questions, and, in main clauses, wishes and "let us".

The infinitive is used: as a noun, to complete a verb (possum), with a subject accusative after iubeō and verbs of wishing, and in indirect statement.

Quick check

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  1. "a wall of ten feet"

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    mūrus decem pedum. Numerical description: genitive.

Why it matters

Real Latin mixes all of these in a single sentence. Being able to name each one is what lets you read a page of Caesar or a letter of Cicero, which is the next step: the readers at the back of the book.

Worked example

Cum lēgātus mīlitēs hortātus esset ut fortiter pugnārent, hostēs, magnō terrōre perterritī, ad flūmen fūgērunt, nē caperentur.

  • cum … hortātus esset: cum clause (when / since), pluperfect subjunctive
  • ut fortiter pugnārent: indirect command
  • magnō terrōre: ablative of cause
  • perterritī: perfect participle
  • ad flūmen: place to which
  • nē caperentur: negative purpose

→ When the lieutenant had urged the soldiers to fight bravely, the enemy, terrified by great fear, fled to the river so as not to be captured.

Common mistake

Naming a construction by its look, not its job. Ut can be purpose, result or indirect command; cum can be "with", "when", "since" or "although"; an ablative can be cause, means or time. Ask what the word does in the sentence.

Key terms

dative of purpose
what something serves as: praesidiō, as a guard
double dative
purpose + person affected: impedīmentō Gallīs
genitive of description
measurements: fossa decem pedum
ablative of description
physical features: magnīs pedibus
praesidium, -ī, n.
guard, garrison
impedīmentum, -ī, n.
hindrance
perterreō, perterrēre, perterruī, perterritus
terrify
maneō, manēre, mānsī
stay, remain

Practise the key terms

Tap a card to turn it over. 8 cards.

FrontBack
dative of purposewhat something serves as: praesidiō, as a guard
double dativepurpose + person affected: impedīmentō Gallīs
genitive of descriptionmeasurements: fossa decem pedum
ablative of descriptionphysical features: magnīs pedibus
praesidium, -ī, n.guard, garrison
impedīmentum, -ī, n.hindrance
perterreō, perterrēre, perterruī, perterritusterrify
maneō, manēre, mānsīstay, remain

Practice

Sort it

Which use of the subjunctive?

  1. Vēnit ut nōs monēret.

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    Purpose. He came in order to warn us.

  2. Tam fortis erat ut omnēs eum laudārent.

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    Result. tam … ut.

  3. Rogāvit quis vēnisset.

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    Indirect question. quis + subjunctive after rogāvit.

  4. Fūgērunt nē caperentur.

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    Purpose. nē: negative purpose.

Quick quiz

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  1. In Hostēs terrōre fūgērunt, terrōre is an ablative of …

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    cause. Ablative of cause: from fear.

  2. In Trēs diēs mānsit, trēs diēs is …

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    accusative of extent (how long). How long: accusative.

  3. Hoc erat magnō impedīmentō Gallīs. impedīmentō is a …

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    dative of purpose. Dative of purpose, with Gallīs as the person affected.

Practise speaking

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You are a patient Latin tutor. Use the classical pronunciation only, never the Church one: c is always k, g is always hard, v sounds like w, ae like the ai in aisle, and long vowels are held longer. Speak slowly. Use only these Latin words: ut, nē, cum, tam, quis, vēnit, vēnisset, rogāvit, fūgērunt, caperentur, monēret, laudārent, hostēs, mīlitēs, lēgātus, terrōre, praesidiō, impedīmentō, Gallīs, castrīs, trēs diēs, erat, magnō, hoc, relīquit, legiōnēs. Read me a short Latin sentence using these words, and I will read it back aloud, translate it, and name each construction (for example 'purpose clause', 'ablative of cause', 'accusative of extent'). Do 6 sentences, getting longer. After each answer, tell me what kind of mistake I made, if any, and let me try again, then tell me one thing to improve. Keep every reply under 2 sentences. If I need a name or a town, I will make one up. Speak English except for the Latin itself.

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Good to know. AI feedback on pronunciation is hit and miss, so check yourself against native recordings. This course teaches the classical pronunciation (see lesson 1); AI voices may mix it with the Church (Italian-style) one, so ask for classical and check against lesson 1. Don't share personal details: use a made-up name and town.

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In short

  • Dative of purpose, often with a dative of the person: magnō impedīmentō Gallīs.
  • Description: genitive for measurements, ablative for physical features, either for other qualities; always with an adjective.
  • Know the jobs of each case and each subjunctive use; name constructions by what they do.

Mastery check

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Check yourself

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  1. Translate Duās legiōnēs praesidiō relīquit.

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    He left two legions as a guard.

  2. Name three uses of the subjunctive.

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    Any three of: purpose, indirect command, fearing, result, characteristic, cum clauses, indirect questions, wishes.

  3. Which case for "a man with big feet"?

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    The ablative (physical description): homō magnīs pedibus.

Further reading

  • D'Ooge, Latin for Beginners, Lessons LXXV–LXXIX, §§ 435–458. Public domain; Project Gutenberg.
  • Next: the readers at the back of D'Ooge (The Labors of Hercules and the story of Lentulus), free on Project Gutenberg.