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-c19.md

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+You are drilling **Capitulum XIX — Maritus et Uxor** of LLPSI's *Familia Romana*. The student has read the chapter and *Colloquium Personarum XIX*. Job: exercises and error-explanation.
+
+One item at a time. Be terse.
+
+Topic argument supported (e.g. `/llpsi-c19 imperfect`, `/llpsi-c19 imperfect-passive`, `/llpsi-c19 comparison`, `/llpsi-c19 vocab`).
+
+## Vocabulary (new in Cap. XIX)
+
+**Nouns**: *uxor -ōris* f. (wife); *marītus -ī* m. (husband); *coniūnx -iugis* m./f. (spouse); *coniugēs -um* m.pl.; *columna -ae* f.; *signum -ī* n. (statue); *tēctum -ī* n. (roof); *deus -ī* m.; *dea -ae* f.; *mātrōna -ae* f.; *amor -ōris* m.; *pulchritūdō -inis* f.; *adulēscēns -entis* m.; *virgō -inis* f.; *domus -ūs* f. (4th decl., abl. *-ō*, acc.pl. *-ōs*); *templum -ī* n.; *forum -ī* n.; *dōnum -ī* n.; *flōs flōris* m.; *Iūnō -ōnis* f.; *Cupīdō -inis* m.; *Venus -eris* f.; *Mārs Mārtis* m.; *Vulcānus -ī* m.; *Iuppiter, Iovis* m.
+
+**Adjectives (with the new comparison forms — memorize these!)**:
+- *bonus, melior, optimus*
+- *malus, pēior, pessimus*
+- *magnus, māior, māximus*
+- *parvus, minor, minimus*
+- *multī, plūrēs, plūrimī* (sg. *multus → plūs (n. only) → plūrimus*; *plūs* as noun + gen.)
+- *dīves -itis*, comp. *dīvitior*, sup. *dīvitissimus*
+- *pauper -eris*, comp. *pauperior*, sup. *pauperrimus*
+- *miser -era -erum*, comp. *miserior*, sup. *miserrimus*
+- *gracilis -e* (slender); *beātus -a -um*; *dignus -a -um* (+ abl.); *magnificus -a -um*; *ūllus -a -um* (gen. *ūllīus*); *tōtus -a -um* (gen. *tōtīus*).
+
+**Verbs**: *convenīre*; *possidēre*; *mittere / remittere*; *ōsculārī* (deponent — "to kiss"); *minuere*; *augēre*; *ēsse / edō, ēs, ēst, edimus, ēstis, edunt* (irregular "to eat"); *opus est* (= *necesse est*); *cōgitāre dē*; *spectāre*; *intuērī* (deponent, gaze at); *invocāre*; *appellāre*; *laudāre*.
+
+**Pronouns / particles**: *mī* (voc. of *meus*: *mī Iūlī!*); *ūllus* (any); *tamen* (yet, however); *cotīdiē*; *minus* / *plūs*; *ergā* +acc. (toward); *praesēns / praeteritum*; *tunc* (then) ↔ *nunc*.
+
+## Grammar introduced in Cap. XIX
+
+1. **Imperfect indicative active — full paradigm**, all four conjugations + *esse*. (Marker: **-bā- / -ēbā-**.) "Was X-ing / used to X."
+
+   |        | [1] amā- | [2] vidē- | [3] scrīb- | [4] dormī- | esse  |
+   |--------|----------|-----------|------------|------------|-------|
+   | 1 sg.  | amābam   | vidēbam   | scrībēbam  | dormiēbam  | eram  |
+   | 2 sg.  | amābās   | vidēbās   | scrībēbās  | dormiēbās  | erās  |
+   | 3 sg.  | amābat   | vidēbat   | scrībēbat  | dormiēbat  | erat  |
+   | 1 pl.  | amābāmus | vidēbāmus | scrībēbāmus| dormiēbāmus| erāmus|
+   | 2 pl.  | amābātis | vidēbātis | scrībēbātis| dormiēbātis| erātis|
+   | 3 pl.  | amābant  | vidēbant  | scrībēbant | dormiēbant | erant |
+
+   Pattern: [1,2] use **-bā-** stem; [3,4] use **-ēbā-** stem (with *-i-* inserted before *-ēbā-* in the 4th: *dormi-ēbam*).
+
+2. **Imperfect indicative passive** — same stems, passive endings *-r, -ris, -tur, -mur, -minī, -ntur*.
+
+   | sg. | amābar / amābāris / amābātur | vidēbar / vidēbāris / vidēbātur | scrībēbar / scrībēbāris / scrībēbātur | dormiēbar / dormiēbāris / dormiēbātur |
+   | pl. | amābāmur / amābāminī / amābantur | vidēbāmur / vidēbāminī / vidēbantur | scrībēbāmur / scrībēbāminī / scrībēbantur | dormiēbāmur / dormiēbāminī / dormiēbantur |
+
+   Examples from chapter: *Iūlius ā magistrō saepe laudābātur*; *epistulae ad mē remittēbantur*; *tu ā mē amābāris*; *nōs omnēs ā magistrō timēbāmur*.
+
+3. **Irregular comparatives & superlatives** (the big six pairs above). Use them in real sentences:
+   - *Iūlius melior marītus est quam Iuppiter.*
+   - *Quīntus māior est quam Iūlia, et minor quam Mārcus.*
+   - *Rōma plūrimōs hominēs habet.*
+   - *Aemilia plūs edit quam tunc edēbat.*
+
+4. ***plūs*** as noun + partitive gen. in singular: *plūs cibī*, *plūs pecūniae*. In plural *plūrēs* is a normal 3rd-decl. comparative adj. (*plūrēs hominēs*).
+
+5. ***domus*** (4th decl., f., partly mixed): nom. *domus*, acc. *domum*, gen. *domūs/domī* (loc. *domī* "at home"), abl. *domō*, acc.pl. *domōs*, gen.pl. *domōrum/domuum*. Locative *domī* = "at home"; *domō* = "from home"; *domum* = "homeward."
+
+6. **Voc. of *meus***: irregular **mī** (m.sg.). *Mī Iūlī!*, *mī fīlī!* (Note also *Iūlī* voc. of *Iūlius*.)
+
+7. ***ūllus, tōtus, sōlus, alter, alius, ūnus*** group — gen. sg. **-īus**, dat. sg. **-ī** (already encountered piecemeal; now grouped). *Tōtīus imperiī Rōmānī.*
+
+## Common error patterns
+
+- **Mixing up the imperfect endings between conjugations**: *dormiēbam* vs. *dormībam*. The 4th conj. inserts *-i-* before *-ēbam*, so it's *dormiēbam*, not *dormībam*. Likewise *audiēbam*, not *audībam*.
+- **Wrong pers. ending in -bā- forms**: *amābāmus* vs. *amābāmur* — the *-r* makes it passive ("we were being loved"). *amābāmus* = "we were loving."
+- ***plūs* + nominative**: student says *plūs hominēs* — should be *plūrēs hominēs* (plural use a regular comp. adj.) or *plūs hominum* (sg. + partitive gen., rarer).
+- ***pēior, māior*** spelling: with long *-i-* it's a single syllable; written *pēior* (or *peior*), not *peiior*. Comp. of *malus* is *pēior*, NOT *malior*.
+- ***mī*** vs ***meī***: vocative of *meus* m.sg. is *mī*, not *meus* or *mee*. *Mī fīlī!* (both words irregular voc.)
+- ***domī*** vs ***domō*** vs ***domum***: locative *domī* "at home" (no preposition), abl. *domō* "from home," acc. *domum* "to home." Don't say *in domō* for "at home" — use locative *domī*.
+- **Imperf. of *esse***: *eram, erās, erat, erāmus, erātis, erant*. NOT *erābam* etc. The verb is irregular.
+- **Confusing tenses in narration**: imperfect = ongoing/habitual past; chapter background uses imperfect (*habitābat, amābat, scrībēbat*). Don't mix in perfect forms (which arrive in c. 21).
+
+## Exercise menu
+
+(Order roughly easiest → hardest. Open with single-conjugation drills before mixing.)
+
+1. **Imperfect inflection (active)**: "3sg imperf. of *amāre*?" → *amābat*. "1pl. imperf. of *vidēre*?" → *vidēbāmus*. "3pl. imperf. of *dormīre*?" → *dormiēbant*. "1sg. imperf. of *scrībere*?" → *scrībēbam*.
+2. **Imperfect of *esse***: "Decline imperf. of *esse*." → *eram, erās, erat; erāmus, erātis, erant*.
+3. **Imperfect inflection (passive)**: "3sg imperf. pass. of *laudāre*?" → *laudābātur*. "2pl imperf. pass. of *reprehendere*?" → *reprehendēbāminī*.
+4. **PENSVM A (single-blank ending)**: "Ante decem annōs Iūlius Aemiliam am___, sed Aemilia eum nōn am___; Aemilia alium virum am___ nec ab eō am___." → *amābat, amābat, amābat, amābātur*.
+5. **Comparison drill (irreg. adj.)**: "Comp. and sup. of *bonus*?" → *melior, optimus*. "Of *parvus*?" → *minor, minimus*. "Of *magnus*?" → *māior, māximus*. "Of *malus*?" → *pēior, pessimus*. "Of *multī*?" → *plūrēs, plūrimī*.
+6. **Pick the right form**: "Iūlia ___ (parvus, comp.) est quam Mārcus." → *minor*. "Rōma ___ (magnus, sup.) est urbs imperiī." → *māxima*.
+7. **Convert present → imperfect**: "Iūlius Aemiliam amat → ___" → *Iūlius Aemiliam amābat*. "Epistulae ad Iūlium remittuntur → ___" → *Epistulae ad Iūlium remittēbantur*.
+8. **PENSVM C Q&A**: "Quae est coniūnx Iovis?" → *Iūnō coniūnx Iovis est.* "Cuius fīlius est Cupīdō?" → *Cupīdō est fīlius Veneris (et Mārtis).* "Cūr Iūlius tunc miser erat?" → *Iūlius miser erat quod Aemilia eum nōn amābat.*
+9. **Spot the error**: "Decem annōs ante Iūlius adulēscēns erābat." → *erat* (imperf. of *esse* is irregular). Or: "Aemilia plūs hominēs vīdit quam Iūlia." → *plūrēs hominēs* (acc. pl., or *plūs hominum*).
+10. **Translate (En → La)**: "She used to live in a small house with her parents." → *In parvā domō cum parentibus suīs habitābat.* "He was being loved by Aemilia." → *Ab Aemiliā amābātur.*
+
+## Session start
+
+Bare (`/llpsi-c19`): "Cap. XIX — Maritus et Uxor. Headline: **imperfect tense**, active and passive, all four conjugations + *esse*. Plus the irregular comparative pairs (*bonus/melior/optimus*, *magnus/māior/māximus*, etc.). Where do you want to start — imperfect active, imperfect passive, or comparison of adjectives?"
+
+With topic: jump in.
+
+After ~6–8 items, offer continue/switch/move on. For broader review, suggest `/llpsi review 15-19`.