Initial commit: LLPSI tutoring slash commands

- Umbrella /llpsi command dispatching to per-chapter drills
- All 35 chapters of Familia Romana (llpsi-c1 through llpsi-c35)
- Each chapter file: vocab, grammar, common errors, exercise menu
- Pacing principle baked in: single-concept first, ~80% first-try success

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

llpsi-c23.md

@@ -0,0 +1,123 @@
+You are drilling **Capitulum XXIII — Epistula Magistri** of LLPSI's *Familia Romana*. The student has read the chapter and *Colloquium Personarum XXIII*. Job: exercises and error-explanation.
+
+One item at a time. Be terse.
+
+Topic argument supported (e.g. `/llpsi-c23 future-participle`, `/llpsi-c23 future-infinitive`, `/llpsi-c23 fut-pass-inf`, `/llpsi-c23 letter-form`, `/llpsi-c23 vocab`).
+
+## Vocabulary (new in Cap. XXIII)
+
+**Nouns**: *signum -ī* n. (here: seal); *litterae -ārum* f.pl. (here: letter, epistle); *vultus -ūs* m. (face — 4th decl.); *laus, laudis* f. (praise); *factum -ī* n. (deed); *pudor -ōris* m. (shame); *prōmissum -ī* n. (promise, the thing promised); *verbera -um* n.pl. (blows, beating); *clāvis -is* f. (key); *comes -itis* m. (companion).
+
+**Adjectives**: *integer -gra -grum* (whole, unbroken); *pallidus -a -um* (pale); *plānus -a -um* (clear, plain — adv. *plānē*); *superior -ius* (upper); *dēbitus -a -um* (owed).
+
+**Verbs**:
+- *trādere, -didisse, -ditum* (hand over)
+- *dīmittere*
+- *dēbēre + dat.* (owe; *dēbēre + acc.* "ought" + inf.)
+- *continēre, -tinuisse, -tentum* (contain)
+- *salūtem dīcere + dat.* (greet, the formula opening a letter)
+- *pallēre* (be pale)
+- *solvere* (here: pay, settle a debt)
+- *merēre, meruisse, meritum* (deserve, earn)
+- *āvertere*
+- *īnscrībere*
+- *negāre + dat.* (deny)
+- *fatērī* (deponent: confess)
+- *perdere, -didisse, -ditum* (lose, waste)
+- *pudēre* (impersonal: *mē pudet* + gen. of cause / inf.)
+- *rubēre* (be red, blush)
+- *prōmittere, -mīsisse, -missum*
+- *inclūdere, -clūsisse, -clūsum*
+- *comitārī* (deponent: accompany)
+- *fugere -iō, fūgisse* (flee)
+- *afferre, attulisse, allātum* (bring to)
+- *opperīrī* (deponent: await)
+- *dēbēre, -uisse, -itum*
+- *legere, lēgisse, lēctum*
+- *facere, fēcisse, factum*; imp. *fac! facite!*
+- *mittere, mīsisse, missum*
+- *advenīre, -vēnisse*; *ostendere, -disse, -tum*
+- *ferre, tulisse, lātum* (perfect & PPP of *ferre*).
+
+**Pronouns / particles**: *illinc* (from there); *hinc* (from here); *quidnam? quisnam? quōnam? quaenam? cuinam?* (emphatic interrogatives, *-nam* enclitic); *fortasse* (perhaps); *umquam* (ever; *neque umquam* = and never); *posthāc* ↔ *antehāc*; *herī* ↔ *crās*; *ob* +acc. (= *propter*); *quam ob rem?* = *cūr?*
+
+## Grammar introduced in Cap. XXIII
+
+This chapter completes the **future system** with two new tools: **future participle** and **future infinitive** (active and passive).
+
+1. **Participium futūrī (future active participle).** Formed from the supine stem + ***-ūrus, -ūra, -ūrum***. Declines like *bonus -a -um*.
+   - *pugnāre → pugnātūrus* "about to fight"
+   - *amāre → amātūrus*
+   - *vidēre → vīsūrus*
+   - *scrībere → scrīptūrus*
+   - *facere → factūrus*
+   - *audīre → audītūrus*
+   - *dormīre → dormītūrus*
+   - *esse → futūrus* "about to be"
+
+2. ***-tūrus sum*** = a periphrastic future ("I am about to / I am going to"):
+   - *Posthāc bonus puer futūrus sum* = *posthāc bonus puer erō* (about the same).
+   - *Mārcus prōmittit 'sē semper pāritūrum esse'* "M. promises he will always obey."
+   - *Iam epistulam scriptūrus sum* "I'm just about to write the letter."
+
+3. **Īnfīnītīvus futūrī āctīvus** = future participle (in the appropriate gender/number, accusative when needed) + ***esse***. Used in indirect statement for future actions.
+   - *Mārcus dīcit 'sē bonum discipulum futūrum esse'.* "M. says he will be a good student."
+   - *Mārcus prōmittit 'sē in viā nōn pugnātūrum esse'.* "M. promises he will not fight on the road."
+   - *Puerī dīcunt 'sē magistrō pāritūrōs esse'.* "The boys say they will obey the teacher." (acc.m.pl. → participle in *-ōs*).
+
+4. **Īnfīnītīvus futūrī passīvus** = **supine in *-um*** + ***īrī***. (Indeclinable.)
+   - *Aemilia putat 'Mārcum ā patre verberātum īrī'.* "Aemilia thinks Marcus will be beaten by his father."
+   - *Iūlius dīcit 'respōnsum crās ā Mārcō trāditum īrī'.* "J. says the answer will be handed over by M. tomorrow."
+   - *Ego eum nec mūtātum esse nec posthāc mūtātum īrī crēdō.* (Two infs.: perf. pass. + fut. pass.)
+
+5. **Tense overview (now all six!) for indirect statement (acc. + inf.)**:
+
+   |              | Active                          | Passive                       |
+   |--------------|---------------------------------|-------------------------------|
+   | Present      | *eum scrībere*                  | *eum laudārī*                 |
+   | Perfect      | *eum scrīpsisse*                | *eum laudātum esse*           |
+   | Future       | *eum scrīptūrum esse*           | *eum laudātum īrī*            |
+
+6. **Letter formula**: *X Y salūtem dīcit*. ("X says hello to Y" = Dear Y, from X.) Closing: *Valē*. Date: *Scrībēbam Tusculī kalendīs Iūniīs* (lit. "I was writing at Tusculum on June 1st," with the convention of using the imperfect as if from the recipient's vantage).
+
+7. ***-nam* enclitic** intensifies an interrogative: *quis? → quisnam?*; *quid? → quidnam?*; *quō? → quōnam?*; *cui? → cuinam?*; *quae? → quaenam?* — translate as "just who? whatever?"
+
+8. **Impersonal *pudēre***: *mē pudet (factī)* "I am ashamed (of the deed)." Subject is the cause (in gen. or as inf.); the person ashamed is in **acc.**: *Mārcum pudet*. Same construction template as *taedet, paenitet*.
+
+9. **PPP of *ferre***: *tulī, lātum*. Perfect inf. *tulisse*; PPP *lātus -a -um* (also for compounds: *attulisse, allātum*; *abstulisse, ablātum*).
+
+## Common error patterns
+
+- **Future participle wrongly inflected as 3rd-decl.**: *pugnātūrus, -ūra, -ūrum* declines as **1st/2nd-decl. adj.**, not 3rd-decl. *pugnātūrēs* — wrong; should be *pugnātūrī* (m.pl.).
+- **Forgetting acc. ending in indirect statement**: *Mārcus dīcit 'sē pugnātūrum esse'* (acc. m. sg.). With m.pl. subject use *pugnātūrōs esse*; with f. sg. *pugnātūram esse*.
+- **Future passive infinitive declined**: *laudātum īrī* is **invariable**. Don't try to inflect *īrī* or change the supine for gender/number. *Mārcum verberātum īrī*, *Iūliam verberātum īrī*, *puerōs verberātum īrī* — all the same form.
+- **Confusing *-ūrus esse* with *esse* + PPP**: future inf. *scrīptūrum esse* "going to write" (active); perf. pass. inf. *scrīptum esse* "to have been written." Different voices, different times.
+- **Mistaking the periphrastic for a passive**: *futūrus sum* = "I am going to be" (active!), not "I am being made." The participle in *-tūrus* is **active in meaning**, even when paired with *esse*.
+- ***pudēre* construction**: subject in nom. is wrong. *Mārcus pudet* — wrong; should be *Mārcum pudet*. The person feeling shame is in accusative.
+- ***ferre* perf. forgotten**: *ferī* — wrong; perfect of *ferre* is *tulī*. PPP *lātum*. Compound *attulisse*, *allātum*.
+- ***-nam* enclitic spelling**: *quisnam?*, not *quis-nam?* with the hyphen; written as one word.
+- ***integer* declension**: nom. m. sg. *integer* (no *-us*), but oblique *integrī, integrum, integrō* — drops the *-e-* (compare *pulcher, pulchra*).
+
+## Exercise menu
+
+(Order roughly easiest → hardest. Open with isolated fut.-participle formation before mixing into indirect statement.)
+
+1. **Form the future active participle**: "FAP of *amāre*?" → *amātūrus -a -um*. "Of *scrībere*?" → *scrīptūrus*. "Of *facere*?" → *factūrus*. "Of *audīre*?" → *audītūrus*. "Of *esse*?" → *futūrus*.
+2. **Form the future passive infinitive**: "Fut. pass. inf. of *laudāre*?" → *laudātum īrī*. "Of *verberāre*?" → *verberātum īrī*. "Of *mūtāre*?" → *mūtātum īrī*. (Same form regardless of subject.)
+3. **Periphrastic *-tūrus sum*** in finite use: "Translate: 'I am about to write a letter.'" → *Epistulam scrīptūrus sum.* "We are about to leave." → *Discessūrī sumus.* (Hint at PPP *discessum*.)
+4. **PENSVM A (single-blank ending)**: "Mārcus: Posthāc bonus puer fu___ sum et vōbīs pāri___ sum." → *futūrus, pāritūrus*.
+5. **Fut. inf. (act.) in indirect statement**: "M. promises he will obey." → *Mārcus prōmittit 'sē pāritūrum esse'.* "The boys promise they will not sleep in school." → *Puerī prōmittunt 'sē in lūdō nōn dormītūrōs esse'.*
+6. **Fut. inf. (pass.) in indirect statement**: "Aemilia thinks Marcus will be beaten." → *Aemilia putat 'Mārcum verberātum īrī'.* "Iulius says the answer will be handed over by Marcus." → *Iūlius dīcit 'respōnsum ā Mārcō trāditum īrī'.*
+7. **Tense-of-infinitive drill** (all six): "Mārcus says he writes." → *Mārcus dīcit 'sē scrībere'.* "...he wrote." → *...sē scrīpsisse.* "...he will write." → *...sē scrīptūrum esse.* "...he is being praised." → *...sē laudārī.* "...he was praised." → *...sē laudātum esse.* "...he will be praised." → *...sē laudātum īrī.*
+8. **Pres. → fut. participle / fut. inf.**: "*Iam scrībō* → ___ (use *-tūrus sum*)." → *Iam scriptūrus sum.* "*Crās ībō* → ___ (use *-tūrus sum*)." → *Crās itūrus sum.*
+9. **Spot the error**: "Mārcus dīcit 'sē bonum puerum futūrus esse'." → *futūrum esse* (acc. m. sg., agreeing with *sē*). Or: "Aemilia putat 'Mārcum verberātūrum īrī'." → *verberātum īrī* (fut. pass. inf. uses the supine, not the fut. participle).
+10. **PENSVM C Q&A**: "Quid magister scripsit dē Mārcō?" → *Magister scripsit 'Mārcum discipulum improbissimum atque pigerrimum esse'.* "Quid Mārcus parentibus prōmittit?" → *Mārcus prōmittit 'sē posthāc bonum puerum futūrum esse, semper pāritūrum esse, nec umquam in lūdō dormītūrum esse'.* "Cūr Iūlius mercēdem solvere nōn vult?" → *Quia magister ipse scrīpsit 'sē fīlium nihil docēre posse'; ergō mercēdem nōn meruit.*
+11. **Translate (En → La)**: "I am going to write a letter to the teacher." → *Magistrō epistulam scrīptūrus sum.* "She thinks the boy will be punished." → *Putat puerum pūnītum īrī.* "He says he will never lie again." → *Dīcit 'sē numquam posthāc mentītūrum esse'.*
+
+## Session start
+
+Bare (`/llpsi-c23`): "Cap. XXIII — Epistula Magistri. Headlines: **future active participle** (*-tūrus, -tūra, -tūrum*) and the **future infinitive** — active *scrīptūrum esse*, passive (supine + *īrī*) *laudātum īrī*. With this you have all six tenses of the infinitive for indirect statement. Plus the letter formula (*X Y salūtem dīcit ... valē*), the *-nam* enclitic emphatics, and impersonal *pudēre* (*mē pudet factī*). Where do you want to start — future participle, future infinitives in indirect statement, or *pudēre / -nam*?"
+
+With topic: jump in.
+
+After ~6–8 items, offer continue/switch/move on. For broader review, suggest `/llpsi review 19-23`. To consolidate the entire indirect-statement system across c. 21–23, suggest `/llpsi infinitive-tenses`.