P10 · Week 7 · Lesson

P10 · Saying the Same Thing from the Other Direction

Passive Voice

Draft · in review

Teacher notes / sources (students may skip)

Corresponds to: Perry Lesson X (§168–177) ＝ SKT บทที่ 10. The SKT preface explicitly notes that this lesson's explanation is the compiler's own composition — the lesson with the richest Thai-language commentary layer. The term itself is the anchor: กรรมวาจก (Thai: "passive voice") ＝ karma-vācaka. The elegance of the mechanism: passive ＝ "root ＋ ya ＋ the second set of endings" — the Ā-endings from P08 and the -ena hat from P02 converge right here.

① AnchorA cognate hiding in Thai — recognise it first, then learn its form0. Anchor (5 minutes)

"Let's start with your own grammar textbook: Thai grammar calls the passive กรรมวาจก (Thai: "passive voice") — break it apart: กรรม (Thai: "karma, the thing acted upon") ＋
วาจก (Thai: "speaker, indicator") ＝ 'taking the object as the head'. Thai grammatical terminology is already Sanskrit.
Now claim one more big word: คีตา (Thai: "Gītā") — Gītā ← gītā (gīta 'that which is sung', feminine form as book title; Thai dictionaries give คีต/คีตะ,
คีตา (Thai: "Gītā") being borrowed as a title form). Bhagavad-gītā — the name literally means 'the Song of the Blessed One (that which is sung)'.
Today you'll understand why it looks the way it does."

② StoryA micro-story you can follow, with only one new form1. Story (CI Micro-narrative — The Same Event, Two Directions)

๑

गुरुः कथाम् कथयति।

guruḥ kathām kathayati.

The teacher tells a story. (active — original sentence from P07)

๒

कथा गुरुणा कथ्यते।

kathā guruṇā kathyate.

A story is told by the teacher. (the same event, reversed direction)

๓

किम् उच्यते।

kim ucyate?

What is being said?

๔

गीता गीयते।

gītā gīyate.

The Gītā is being sung.

(All three components of sentence ๒ are recycled material: kathā wears the subject hat (nominative form), guru wears the -ṇā instrumental hat, kath＋ya＋te. Note the ṇ in guruṇā — the ṇ mystery is back: r precedes, n becomes ṇ, the P03 rule applies unchanged.)

③ Sentence-buildingBuild it sentence by sentence from words you already have2. Sentence-Building (MT Track)

"The same event can be told from either end. From the doer's side: guruḥ kathāṃ kathayati.
From the event itself: kathā guruṇā kathyate — story · by-teacher · is-told.
Three-step recipe, all recycled: ① the event wears the subject hat (kathā, nominative) ② the doer wears the instrumental hat -ena/-ṇā (the hat from P02!)
③ the verb puts on the passive outfit ＝ root＋ya＋second set of endings (-te from P08!)"
"Practice: what's the passive of paṭhati?" (paṭhyate) "'Is seen'?" (dṛśyate — teacher provides: the actual root of 'to see' is dṛś,
the active present borrows paś (paśyati), but the passive reverts to the original root. Remember this pair for now.) "'Is said'?" (ucyate — the passive of vac,
also irregular: begins with u. Irregulars are supplied, not memorized.)

Sentence-building chain: kathayati → kathyate → kathā kathyate → kathā guruṇā kathyate → gītā gīyate.

④ DripGrammar one line at a time; the full table comes at the crystallization lesson3. In-Line Drip-Feed (Three Lines)

Listen4. Listening (Audio List)

▶ audioAudio checklist for this lesson — placeholders in the preview; the live version uses pre-baked Matcha audio + real recordings (played when logged in, not hot-linked).

All four story sentences in both versions; active–passive paired cuts: 🔇kathayati↔kathyate🔇, 🔇paṭhati↔paṭhyate🔇, 🔇gāyati↔gīyate🔇; slow reading of guruṇā (ṇ); irregular-form cards ucyate/dṛśyate (listen for familiarity only).

Use5. Use (Exercises)

Direction swap: teacher gives an active sentence (all recycled material), students orally convert to passive (recast; only kath/paṭh, the two regular verbs, are required).

Listening discrimination: active or passive? (-ti/-te＋ya cue, eight examples).

Term decoding: กรรมวาจก (Thai: "passive voice") — the whole class breaks it apart; bonus: break down กริยา (Thai: "verb") ←kriyā (the Thai word for 'verb' ＝ 'that which is done' — a noun from √kṛ; its -yā is a nominal suffix, unrelated to the passive -ya-, a pure etymological Easter egg).

Decoder card retrieval: คีตา (Thai: "Gītā") ←gītā (see anchor); อาชญา (Thai: "criminal, punishment") ←ājñā (command→punishment, this lesson's vocabulary) — Pali-Sanskrit doublet: Sanskrit form อาชญา (Thai: "criminal, offense", as in อาชญากรรม) alongside Pali form อาณา (Thai: "authority, command") ←āṇā (as in อาณาจักร "kingdom"), used in distinct contexts and not mixed.

kośa intakeThis lesson's words enter your personal word-store6. kośa (Personal Word-Store Entries for This Lesson)

Word cards: kath passive kathyate, paṭh passive paṭhyate, gā (→gāyati to sing; passive gīyate; gīta/gītā — คีต (Thai: "musical composition") /คีตา (Thai: "Gītā") card), vac (→ucyate is said — irregular card), dṛś (→dṛśyate is seen; active present borrows paś — irregular card), ājñā आज्ञा (command; อาชญา (Thai: "criminal/offense") — doublet card อาณา (Thai: "authority/realm")) Formula card ×1: passive three-step (subject hat＋instrumental hat＋ya-te) — compose one sentence on the spot during review.

Crystallization linkCrystallization Bridge

→ W7 Crystallization Lesson Three (P8–11): full P/Ā paradigm table ＋ systematic passive formation (including aya-drop, dṛś/vac irregulars archived) ＋ complete ā-stem feminine table ＋ imperfect (after P11). "You can already say one thing from both ends — the Crystallization Lesson just finds a formal home in grammar for that skill."