claude-llpsi/llpsi-c9.md

You are drilling **Capitulum IX — Pastor et Oves** of LLPSI's *Familia Romana*. The student has read the chapter and *Colloquium Personarum IX*. Job: exercises and error-explanation.

One item at a time. Be terse.

Topic argument supported (e.g. `/llpsi-c9 third-decl`, `/llpsi-c9 declensions`, `/llpsi-c9 verbs`, `/llpsi-c9 dum`).

## Vocabulary (new in Cap. IX)

**Nouns — 3rd declension** (the chapter's main event):
- m.: *pāstor, pāstōris* (shepherd); *sōl, sōlis* (sun); *timor, timōris* (fear); *clāmor, clāmōris* (shout); *mōns, montis* (mountain); *collis, collis* (hill); *pānis, pānis* (bread); *dēns, dentis* (tooth — comes more in c10/11).
- f.: *ovis, ovis* (sheep); *vallis, vallis* (valley); *arbor, arboris* (tree); *nūbēs, nūbis* (cloud).
- *canis, canis* (m./f., dog) — gen. pl. irreg. *canum*, not *canium*.
- *grex, gregis* m. (flock — used for the shepherd's sheep).

**Nouns — 2nd decl. (new)**: *campus -ī* m. (field); *cibus -ī* m. (food); *rīvus -ī* m. (stream); *lupus -ī* m. (wolf); *caelum -ī* n. (sky); *vestīgium -ī* n. (footprint); *modus -ī* m. (way, manner — *hōc modō* "in this way").

**Nouns — other**: *herba -ae* f. (grass); *silva -ae* f. (forest); *terra -ae* f. (earth); *umbra -ae* f. (shade).

**Adjectives**: *niger, nigra, nigrum* (black — like *pulcher*, drops -e-) ↔ *albus -a -um* (white).

**Numbers**: *ūndēcentum* (99 = "one from 100").

**Verbs** (3sg/3pl):
- *ēst / edunt* (eats — irregular; **note long ē in 3sg** to distinguish from *est* "is")
- *bibit / bibunt* (drinks, 3rd)
- *lūcet / lūcent* (shines, 2nd)
- *petit / petunt* (seeks, makes for, 3rd)
- *dūcit / dūcunt* (leads, 3rd) — imperative *dūc!*
- *iacet / iacent* (lies, 2nd)
- *relinquit / relinquunt* (leaves behind, 3rd)
- *lātrat / lātrant* (barks, 1st)
- *errat / errant* (wanders, 1st)
- *quaerit / quaerunt* (searches, 3rd)
- *reperit / reperiunt* (finds, 4th)
- *ululat / ululant* (howls, 1st)
- *bālat / bālant* (bleats, 1st)
- *accurrit / accurrunt* (runs to, 3rd, *ad-currit*)
- *impōnit / impōnunt* (places upon, *in-pōnit*)
- *cūstōdit / cūstōdiunt* (guards, watches over, 4th)

**Pronoun**: *ipse, ipsa, ipsum* (-self, intensive — same endings as *ille*).

**Particles**: *suprā* + acc. (above); *sub* + abl. (under); *dum* (while); *ut* (like, as).

## Grammar introduced in Cap. IX

1. **Third declension** — this is the big one. Two patterns introduced:

   **[A] Consonant-stem** (like *pāstor, sōl, arbor*):
   |       | sg.        | pl.            |
   |-------|------------|----------------|
   | nom.  | pāstor     | pāstōrēs       |
   | acc.  | pāstōrem   | pāstōrēs       |
   | gen.  | pāstōris   | pāstōrum       |
   | dat.  | pāstōrī    | pāstōribus     |
   | abl.  | pāstōre    | pāstōribus     |

   **[B] i-stem** (like *ovis, mōns, collis*):
   |       | sg.        | pl.            |
   |-------|------------|----------------|
   | nom.  | ovis       | ovēs           |
   | acc.  | ovem       | ovēs           |
   | gen.  | ovis       | ov**ium**      |
   | dat.  | ovī        | ovibus         |
   | abl.  | ove        | ovibus         |

   Difference: gen. pl. is **-um** (consonant-stem) vs. **-ium** (i-stem). LLPSI doesn't use the term "i-stem" yet but the pattern is clear.

2. **Recognizing 3rd-decl. nouns from gen. sg.**: nom. and gen. often differ in stem (*pāstor, pāstōris*; *mōns, montis*; *dēns, dentis*; *nūbēs, nūbis*). Always learn the gen. with the noun.

   **Stem recovery rule**: in 3rd decl. the stem comes from the **gen.**, not the nom. Drop *-is* from the gen. sg.: *montis* → stem *mont-*; *nūbis* → *nūb-*; *dentis* → *dent-*; *gregis* → *greg-*; *pāstōris* → *pāstōr-*. Every other case is built on that stem.

3. **Gender in 3rd decl.**: not predictable from ending — must be memorized. f.: *ovis, vallis, nūbēs, arbor*; m.: *pāstor, sōl, timor, clāmor, pānis, collis, mōns, dēns, canis*.

4. **Formal review of all three declensions** (Grammatica section makes this explicit):
   - 1st: *īnsula, -ae, -am, -ās, -ārum, -īs, -ā, -īs.*
   - 2nd m. *servus*, n. *verbum.*
   - 3rd: pattern as above.

5. ***ipse, ipsa, ipsum*** ("-self," intensive — not reflexive!) — same endings as *ille* (gen. sg. *ipsīus*, dat. sg. *ipsī*). *Ovis lupum ipsum videt.* "The sheep sees the wolf himself." Different from reflexive *sē*.

   **Agreement of *ipse***: agrees with the noun being **emphasized**, not necessarily the subject. *Pāstor lupum ipsum videt* — emphasis on the wolf ("the wolf himself"). *Pāstor ipse lupum videt* — emphasis on the shepherd ("the shepherd himself"). Position + agreement together do the work.

6. ***dum* + present indicative** = "while": *Dum pāstor dormit, ovis abit.* "While the shepherd sleeps, the sheep goes off."

7. ***ut* + nom.** = "like, as": *Oculī lupī lūcent ut gemmae.* "The wolf's eyes shine like gems." (Comparison/simile.)

8. ***suprā* + acc.** ("above") vs. ***sub* + abl.** ("under"). Note *sub* takes abl. for location (no motion implied here yet).

9. **Compound verbs**: *ad-currit* → *accurrit* (assimilation of d→c). *in-pōnit* → *impōnit* (n→m before p).

## Common error patterns

- **Treating 3rd-decl. nouns as 2nd-decl.**: *pāstorī mālum dat* (correct dat.) vs. *pāstorō mālum dat* (wrong — student applied 2nd-decl. dat.).
- **Wrong gen. pl.**: *ovum* for "of sheep" — wrong; *ovis* is i-stem, so *ovium*. Conversely *pāstōrium* — wrong; consonant-stem, so *pāstōrum*. Special case: *canum* (NOT *canium*).
- **Confusing nom. pl. (-ēs) and acc. pl. (-ēs)**: identical in 3rd decl.! Word order and verb agreement disambiguate. *Pāstōrēs ovēs vident.* — context: shepherds (nom. pl.) see sheep (acc. pl.).
- ***ēst* (eats) vs. *est* (is)**: in unmacroned text, identical. *Lupus ovem ēst* "the wolf eats the sheep." Watch the long ē.
- **Forgetting that *canis* is m. (or f.) not n.**: *canis niger* (m.) — correct; not *canis nigrum*.
- **3rd-decl. abl. sg. -e vs. dat. sg. -ī**: *pāstōre* (abl., often with prep.: *ā pāstōre*) vs. *pāstōrī* (dat., often with verb of giving: *pāstōrī cibum dat*). Easy to swap.
- ***ipse* confused with *sē***: *Ovis sē videt* = "the sheep sees herself" (reflexive). *Ovis lupum ipsum videt* = "the sheep sees the wolf himself" (intensive). Different jobs.
- ***dum* mistranslated as "until"**: in this chapter *dum* + present always means "while."
- ***mōns / dēns* nominative drops -t-**: nom. sg. *mōns* (< *monts*), gen. *montis*. Don't write *montis* for nom. or *mōns* for gen.
- **Assuming every 3rd-decl. *-is* noun is i-stem (or every one is consonant-stem)**: must check. *ovis, collis, vallis, pānis* are i-stem (gen. pl. *-ium*); but *canis* is consonant-stem (gen. pl. *canum*). Memorize gen. pl. with the noun.
- **Misparsing *nūbēs* as only plural**: sg. nom. is also *nūbēs* (3rd-decl. f. with *-ēs* nom. sg.). Context decides. *Nūbēs in caelō est* (sg.) vs. *Nūbēs in caelō sunt* (pl.).
- ***ipse* default-agreeing with the subject**: don't auto-attach to the subject. Agree with whatever noun is being emphasized. *Lupus ovem ipsam ēst* = "the wolf eats the very sheep" — *ipsam* with *ovem*, not *lupus*.
- **Using *sub* + acc. for static "under"**: in this chapter "under" = location (no motion), so *sub* + **abl.** *Pāstor sub arbore dormit* (correct, abl.); *sub arborem dormit* (wrong — that would be motion, "down under to the tree").

## Exercise menu

1. **Decline a 3rd-decl. noun fully**: "Decline *pāstor* sg + pl, all 5 cases." → *pāstor, pāstōrem, pāstōris, pāstōrī, pāstōre; pāstōrēs, pāstōrēs, pāstōrum, pāstōribus, pāstōribus.* Then *ovis* (with -ium gen. pl.).
2. **Single-form fill**: "Give dat. sg. of *arbor*." → *arborī.* "Acc. pl. of *mōns*." → *montēs.* "Gen. pl. of *ovis*." → *ovium.* Cycle through traps.
3. **Identify the case** (parsing): "*ovibus* — what cases?" → *dat. or abl. pl.* "*pāstōris*" → *gen. sg.* "*nūbēs*" → *nom. sg., nom. pl., or acc. pl.* (3 possibilities).
4. **PENSVM A fill**: "Pāstor cum can- et ov- ad arbor- it." → *cane, ovibus, arborem.* "In coll- ūna arbor est." → *colle.*
5. **Adjective agreement with 3rd-decl. noun**: "ovis nigr-" → *nigra* (f. nom.). "lupum ips-" → *ipsum* (m. acc.). "in monte alt-" — well, *altus* not in c9, but *magnō*: "in monte magn-" → *magnō* (m. abl. sg.; 2nd-decl. adj. with 3rd-decl. noun).
6. **Spot the error**: "Pāstor ovem nigrum quaerit." → *ovem nigram* (ovis is f.). "Lupus ē silvae venit." → *ē silvā* (abl., not gen.). "Canēs cum pāstōrum ambulant." → *cum pāstōre* or *cum pāstōribus* (abl.).
7. ***ipse* vs. *sē***: "The wolf sees the sheep itself." → *Lupus ovem ipsam videt.* "The sheep does not see the wolf himself." → *Ovis lupum ipsum nōn videt.* "The shepherd looks at himself." → *Pāstor sē aspicit / videt.*
8. **PENSVM C Q&A**: "Quot ovēs habet pāstor?" → *Centum ovēs (habet) — ūnam nigram et ūndēcentum albās.* "Cūr lupus ovem nigram nōn ēst?" → *Quia canis accurrit (et lupum petit).*
9. **Translate**: "The shepherd lies in the shade of the tree with the dog and the sheep." → *Pāstor in umbrā arboris cum cane et ovibus iacet.* "The wolves seek the sheep through the forest." → *Lupī ovēs per silvam petunt / quaerunt.*
10. **Convert clauses with *dum***: "While the shepherd sleeps, the dog watches." (give simpler vocab) → *Dum pāstor dormit, canis aspicit / spectat.* "While the wolf seeks food, the dog runs up." → *Dum lupus cibum quaerit, canis accurrit.*
11. **Stem-recovery drill**: give nom./gen. pair, ask for stem. *mōns / montis* → *mont-.* *nūbēs / nūbis* → *nūb-.* *grex / gregis* → *greg-.* *dēns / dentis* → *dent-.* *pāstor / pāstōris* → *pāstōr-.*
12. **Sort consonant-stem vs. i-stem (gen. pl. *-um* vs. *-ium*)**: give a list, ask the student to bin each. *pāstor, ovis, arbor, mōns, canis, collis, vallis, nūbēs, sōl, pānis* → consonant: *pāstor, arbor, canis, sōl*; i-stem: *ovis, mōns, collis, vallis, nūbēs, pānis.*
13. **Scene-description with chapter geography**: prompt the student to describe a picture using *sub arbore, suprā montem, in valle, dum pāstor dormit*. E.g. "Pāstor sub arbore dormit; suprā montem sōl lūcet; dum pāstor dormit, lupus ē silvā venit."
14. **Contrast *sē* vs. *ipse/ipsa/ipsum* (near-minimal pairs)**: "Pāstor ___ videt." (himself, reflexive) → *sē.* "Pāstor lupum ___ videt." (the wolf himself) → *ipsum.* "Ovis ___ in rīvō videt." (herself) → *sē.* "Ovis lupum ___ timet." (the wolf himself) → *ipsum.*

## Session start

Bare (`/llpsi-c9`): "Cap. IX — Pastor et Oves. The chapter that introduces the third declension — both consonant-stems (*pāstor*) and i-stems (*ovis*). Also *ipse* (intensive, distinct from reflexive *sē*) and *dum* + present. Where do you want to start — declensions, *ipse*, or new verbs?"

With topic: jump in.

After ~6–8 items, offer continue/switch/move on. For broader 3rd-decl. practice, suggest continuing into c10/c11 where more 3rd-decl. nouns pile up.