Ìlànà, Òfin, àti Èdè Onídùúró
Chapter Objectives
By the end of this chapter, you will be able to:
- Express obligation, requirement, and necessity using consolidated modal frames.
- Express prohibition in formal, rule-like language, distinct from ordinary negative commands.
- Form conditional sentences that describe what happens if a rule is or is not followed.
- Use careful, hedged modality to summarize a policy-like text without overstating certainty or specialist expertise.
- Recognize formal vocabulary associated with policies, rules, safety notices, and institutions.
- Pronounce specialist and institutional terms carefully and accurately.
- Listen to and read short rule- or policy-like texts, identifying obligations, prohibitions, and conditions.
- Summarize a policy-like text responsibly, in writing and aloud, without overclaiming expertise.
Opening Communication Scenario
Adé's community radio station has asked him to prepare a short segment explaining a new municipal safety notice about market-stall fire regulations. Adé is not a fire-safety official, so he must read the notice carefully, identify what it requires, what it forbids, and what happens under certain conditions, and then summarize it for listeners in careful, responsible language — without adding his own opinions or claiming knowledge the notice itself does not state.
- This chapter teaches how to express obligation, prohibition, and conditional consequence in formal Yorùbá.
- It develops careful, hedged modality so that a summary reflects only what a policy-like text actually says.
- By the end of the chapter, you will summarize a policy-like text responsibly, following the same process Adé uses for his safety-notice segment.
Core Vocabulary
The following vocabulary supports discussion of policies, rules, safety, and institutions. Items marked "Productive (introduced)" are new for this chapter.
| Yorùbá | English | Status |
|---|---|---|
| ìlànà | policy, guideline | Productive (introduced) |
| òfin | rule, law | Productive (introduced) |
| ìtọ́ni ààbò | safety notice, safety instruction | Productive (introduced) |
| ó jẹ́ dandan pé | it is required/necessary that (obligation) | Productive (introduced) |
| a kò gbọdọ̀ | one must not (formal prohibition) | Productive (introduced) |
| bí ... bá | if ... (conditional) | Productive (introduced; previewed Ch3) |
| ó ṣeéṣe kí | it is possible that (careful hedged modality) | Productive (introduced) |
| gẹ́gẹ́ bí ìtọ́ni náà ṣe sọ | according to what the notice states | Productive (introduced; recycled from Ch6) |
| ìjìyà | penalty, punishment | Productive (introduced) |
| ọ́fíìsì aláṣẹ | authority office, regulatory office | Productive (introduced) |
Pronunciation Focus
Policy and safety vocabulary often contains longer compound terms built from familiar words, and a rushed or flattened pronunciation can obscure which term is being used. This chapter's pronunciation focus is producing these compound terms with full tone accuracy and even syllable spacing, so a listener can distinguish, for example, a notice about a rule from a notice about a penalty.
- Practice ìtọ́ni ààbò ("safety notice") syllable by syllable before speeding up, since the double vowel in ààbò must remain long and clearly tone-marked.
- Pay special attention to ó jẹ́ dandan pé versus a kò gbọdọ̀, where tone and vowel quality distinguish obligation from prohibition.
- Practice reading a rule-like sentence at a measured, formal pace, giving each modal or conditional word its own clear stress.
Grammar and Sentence Patterns
This chapter develops obligation, prohibition, conditional consequence, and careful hedged modality inside the functional task of reading and summarizing a policy-like text responsibly.
Obligation with `ó jẹ́ dandan pé`
Ó jẹ́ dandan pé [ẹnikẹ́ni] [ó ṣe ìṣe kan]
Obligation is built with the impersonal frame ó jẹ́ dandan pé ("it is required that") followed by a complement clause with its own subject and verb. This keeps the requirement stated as a rule rather than as a command aimed at one specific listener.
Ó jẹ́ dandan pé gbogbo alágbàṣe ọjà ní kí wọ́n pa iná mọ́tò wọn nígbà tí wọn kò bá ń lò ó.
It is required that every market vendor must turn off their generator engine when they are not using it.
Formal prohibition with `a kò gbọdọ̀`
- A kò gbọdọ̀ fi iná ṣe oúnjẹ nínú àgọ́ ọjà lẹ́yìn wákàtí méjọ́ tí a ti gbà láṣẹ. One must not cook with fire inside a market stall after the eight authorized hours. a kò gbọdọ̀ formal prohibition frame, developed this chapter
- A kò gbọdọ̀ dí ọ̀nà àbáyọ ní àsìkò tí iná bá jó. One must not block the escape route in the event of a fire. a kò gbọdọ̀ formal prohibition frame, developed this chapter
Policy-like texts often describe what happens under a stated condition. The frame bí ... bá ("if...") was previewed in Chapter 3 and is now developed for rule-and-consequence sentences: bí ẹnikẹ́ni bá rú òfin yìí, ó lè jẹ ìjìyà owó tàbí kí wọ́n gba ìwé àṣẹ ọjà rẹ̀ padà ("if anyone breaks this rule, they may face a fine or have their market permit withdrawn"). The condition clause states the circumstance; the result clause states the consequence, often with a modal such as lè ("may") rather than a flat certainty.
When summarizing a policy or safety text, a learner who is not a specialist should avoid stating consequences as flat certainties unless the text itself does so. ó ṣeéṣe kí ("it is possible that") introduces a hedged, responsible reading: ó ṣeéṣe kí ọ́fíìsì aláṣẹ ṣe àyẹ̀wò àfikún bí a bá rí àwọn ohun tí kò bá òfin mu ("it is possible that the authority office may carry out an additional inspection if items not in compliance with the rule are found"). This hedge frame is distinct from the stance frame ó rò pé from Chapter 6: ó ṣeéṣe kí signals uncertainty about an outcome, while ó rò pé signals a source's belief.
The attribution frame gẹ́gẹ́ bí ... ṣe sọ, developed in Chapter 6, is now applied to notices and documents rather than only to people: gẹ́gẹ́ bí ìtọ́ni ààbò náà ṣe sọ, gbogbo aṣáájú ọjà ní láti kọ́ àwọn olùtajà nípa ọ̀nà àbáyọ ("according to what the safety notice states, every market leader must instruct sellers about the escape route"). Reference chains, consolidated since earlier volumes, must keep the notice, the authority office, and the vendors clearly distinguished throughout a summary.
Model Dialogue
Ipò: Adé àti Bùkúnmi, aṣáájú ẹgbẹ́ àwọn olùtajà ọjà, ń jíròrò ìtọ́ni ààbò tuntun nípa iná ní ọjà.
Setting: Adé and Bùkúnmi, a leader of the market sellers' association, are discussing a new fire-safety notice for the market.
Guided Practice
- Identify the sentence expressing obligation, and underline the ó jẹ́ dandan pé frame.
- Find the sentence expressing formal prohibition, and underline a kò gbọdọ̀.
- Locate the conditional sentence, and underline bí ... bá and its consequence clause.
- Write one sentence of your own using ó ṣeéṣe kí to hedge a possible outcome.
Listening Practice
Ask an instructor, study partner, or qualified Yorùbá speaker to read the passage below aloud, or read it aloud yourself and then cover it before answering.
If no speaker is available, this is a Listening Script for Independent Use. Machine text-to-speech must be checked by a qualified Yorùbá speaker before use as a pronunciation model.
"Ẹ kú iṣẹ́. Ìtọ́ni ààbò tuntun yìí kàn gbogbo àwọn tí wọ́n ń ta ọjà ní ọjà àárín ìlú. Ó jẹ́ dandan pé gbogbo alágbàṣe ọjà ní kí wọ́n pa iná mọ́tò wọn nígbà tí wọn kò bá ń lò ó, kí wọ́n sì tọ́jú rẹ̀ sí ibi tí kò lè fa iná. A kò gbọdọ̀ dí ọ̀nà àbáyọ pẹ̀lú ẹrù, a kò sì gbọdọ̀ fi iná ṣe oúnjẹ nínú àgọ́ ọjà lẹ́yìn wákàtí méjọ́ tí a ti gbà láṣẹ. Bí ẹnikẹ́ni bá rú àwọn òfin yìí, ó lè jẹ ìjìyà owó tàbí kí wọ́n gba ìwé àṣẹ ọjà rẹ̀ padà fún ìgbà díẹ̀. Ìtọ́ni náà kò sọ àkókò gangan fún àyẹ̀wò déédéé, ṣùgbọ́n ó ṣeéṣe kí ọ́fíìsì aláṣẹ ṣe àyẹ̀wò àfikún bí a bá rí ohun tí kò bá òfin mu. A ń gbà á níyànjú pé gbogbo aṣáájú ẹgbẹ́ àwọn olùtajà kí wọ́n kọ́ àwọn ọmọ ẹgbẹ́ wọn nípa ìtọ́ni yìí ní ẹ̀ẹ̀kan ní gbogbo oṣù."
1. What is required of every market vendor regarding generators?
2. What are the two things one must not do, according to the notice?
3. What may happen to someone who breaks these rules?
Iṣẹ́ rẹ — Your task: Answer the three questions above in complete Yorùbá sentences, using Standard Written Yorùbá.
Speaking Practice
Tier 1 — Supported
Read the obligation, prohibition, and conditional sentences from the Grammar section aloud, then substitute a different rule and consequence of your own.
Tier 2 — Guided
State one obligation using ó jẹ́ dandan pé, one prohibition using a kò gbọdọ̀, and one conditional consequence using bí ... bá.
Tier 3 — Independent
Summarize aloud, in 60–90 seconds, a real or imagined policy or safety notice, clearly distinguishing obligation, prohibition, and conditional consequence, and hedging any uncertain outcome with ó ṣeéṣe kí rather than stating it as certain.
Reading Practice
Ìtọ́ni Ìjọba Ìbílẹ̀ — A Local Government Notice
Gẹ́gẹ́ bí ìtọ́ni ìjọba ìbílẹ̀ ṣe sọ, ó jẹ́ dandan pé gbogbo àwọn ẹrọ akérò tí wọ́n ń gbé àwọn ọmọ ilé-ìwé ní kí wọ́n ní àpò ìrànlọ́wọ́ àkọ́kọ́bọ̀ nínú ọkọ̀ ní gbogbo ìgbà. A kò gbọdọ̀ gbé ọmọ ilé-ìwé ju iye tí a fi lélẹ̀ lọ nínú ọkọ̀ kan ṣoṣo. Bí adarí ọkọ̀ kan bá rú òfin yìí, ó lè jẹ ìjìyà owó tàbí kí wọ́n gba ìwé àṣẹ awakọ̀ rẹ̀ padà. Ìtọ́ni náà kò dá lórí bí a óò ṣe fọwọ́sowọ́pọ̀ pẹ̀lú àwọn ilé-ìwé fúnra wọn, ṣùgbọ́n ó ṣeéṣe kí ọ́fíìsì ìjọba ìbílẹ̀ ṣètò ìpàdé pẹ̀lú àwọn olórí ilé-ìwé láti ṣàlàyé ìtọ́ni náà síwájú sí i. Aṣojú àwọn òbí kan sọ pé, "A fẹ́ kí gbogbo ohun tí a bá ń béèrè lọ́wọ́ àwọn awakọ̀ jẹ́ ohun tí ó bá ìtọ́ni ìjọba mu gan-an, kì í ṣe ohun tí ilé-ìwé kọ̀ọ̀kan yàn fúnra rẹ̀." Ọ́fíìsì ìjọba ìbílẹ̀ ni ó gbé òfin yìí kalẹ̀, ṣùgbọ́n àwọn olórí ilé-ìwé àti àwọn òbí ni ó ń rí sí bí a ṣe ń mú un ṣẹ ní ilẹ̀.
1. According to the notice, what must every school transport vehicle have at all times?
2. What is prohibited regarding the number of students in one vehicle?
3. What may happen to a driver who breaks this rule?
4. Identify one hedged statement in the passage and explain what makes it careful rather than certain.
Iṣẹ́ rẹ — Your task: Answer the four questions above in complete Yorùbá sentences.
Writing Workshop
Write a short policy summary (150–200 words) about a rule, policy, or safety notice, with full tone marks and dot-under letters throughout. Your summary must include at least one obligation sentence with ó jẹ́ dandan pé, at least one prohibition with a kò gbọdọ̀, at least one conditional sentence with bí ... bá, and at least one hedged statement with ó ṣeéṣe kí.
Sample summary shell — for reference only
Gẹ́gẹ́ bí [ìtọ́ni/òfin] ṣe sọ, ó jẹ́ dandan pé [ẹnikẹ́ni] [ó ṣe ìṣe kan]; a kò sì gbọdọ̀ [ìṣe tí a kọ̀].
According to [the notice/rule], it is required that [someone] [does something]; and one must not [a forbidden action].Bí ẹnikẹ́ni bá rú òfin yìí, ó lè [àbájáde kan]. Ó ṣeéṣe kí [àbájáde tí kò dá jáde ní gbangba].
If anyone breaks this rule, they may [a consequence]. It is possible that [an outcome not explicitly stated].Include
- at least one obligation sentence with ó jẹ́ dandan pé
- a prohibition with a kò gbọdọ̀
- a conditional sentence with bí ... bá
- a hedged statement with ó ṣeéṣe kí
Avoid
- stating an uncertain outcome as a flat certainty
- adding specialist claims the source text does not make
- omitting tone marks or dot-under letters
- Every vowel that should carry a high or low tone mark has one.
ẹ,ọ, andṣare distinguished frome,o, andsthroughout.- Obligation and prohibition are marked with the correct distinct frames.
- Any uncertain outcome is hedged rather than stated as certain.
- No specialist claim appears beyond what the source text states.
Culture and Communication
In many Yorùbá-speaking communities, market associations, school leaders, and local government offices commonly share responsibility for explaining rules and notices to the people they affect, often relaying information through trusted community leaders in addition to official written notices.
The specific wording of obligation and prohibition frames can vary somewhat between government offices, institutions, and regions. This chapter's patterns describe a widely usable formal-register model; learners encountering other wordings receptively should treat them as labeled variation rather than as errors.
Common Mistakes
Error: Summarizing a notice by saying "ọ́fíìsì aláṣẹ yóò ṣe àyẹ̀wò àfikún" ("the authority office will carry out an additional inspection") when the source text only states this as a possibility, not a certainty.
Correction: Use the hedge frame when the source itself is not certain, as in "ó ṣeéṣe kí ọ́fíìsì aláṣẹ ṣe àyẹ̀wò àfikún."
Error: Using the same negative pattern for both "must not" and ordinary casual refusal, so that a formal rule sounds like a personal preference.
Correction: Reserve a kò gbọdọ̀ for formal, rule-based prohibition, as in a kò gbọdọ̀ dí ọ̀nà àbáyọ pẹ̀lú ẹrù, distinct from ordinary conversational negation.
Chapter Summary
This chapter developed obligation with ó jẹ́ dandan pé, formal prohibition with a kò gbọdọ̀, conditionals with bí ... bá, and careful, hedged modality with ó ṣeéṣe kí, all inside the functional task of reading and summarizing a policy-like text responsibly. Attribution and reference, consolidated from Chapter 6, were extended to notices and documents rather than only individual speakers. Learners practiced listening to, speaking about, reading, and writing rule- and policy-related content while maintaining full Standard Written Yorùbá production and avoiding overclaiming specialist expertise.
Chapter Review
Apá A — Ìṣàyẹ̀wò Gírámà (Grammar Check)
1. Write one obligation sentence using ó jẹ́ dandan pé.
2. Write one prohibition sentence using a kò gbọdọ̀.
3. Write one conditional sentence using bí ... bá, and one hedged sentence using ó ṣeéṣe kí.
Apá B — Ìṣàyẹ̀wò Ara Ẹni (Self-Check)
1. Which part of rule-and-policy communication feels most natural to you so far?
2. Which part — obligation, prohibition, conditionals, or hedged modality — do you want to keep practicing?
Ìfojúsí ẹkọ̀ tẹ́lẹ̀ — Cumulative review check
Before moving to Chapter 8, confirm you can do the following:
- Express obligation using ó jẹ́ dandan pé.
- Express formal prohibition using a kò gbọdọ̀.
- Form a conditional rule-and-consequence sentence using bí ... bá.
- Hedge an uncertain outcome using ó ṣeéṣe kí rather than stating it as certain.
- Apply attribution and reference tracking from Chapter 6 to notices and documents.
- Maintain full tone marking and dot-under orthography throughout formal writing.
Practical Performance Task
Iṣẹ́ aṣeyọrí — Abala 7
Àkópọ̀ Ìlànà — Policy Summary
Produce a complete short summary of a policy, rule, or safety notice, entirely in Standard Written Yorùbá, following the structure taught in this chapter.
Component 1 — Draft Summary
- 150–200 words, summarizing a rule's requirements, prohibitions, and at least one conditional consequence, with at least one hedged statement.
- No claim beyond what the source rule or notice states.
Component 2 — Revised Summary
- Apply the Policy Summary Editing Checkpoint and produce a corrected final version.
- Note, in one or two sentences, what you changed and why.
Component 3 — Spoken Response
- Present the summary aloud (60–90 seconds) to a partner, instructor, or recording, in a measured, formal delivery.
Assessment note: This task provides evidence of obligation and prohibition accuracy, conditional formation, hedged-modality control, attribution and reference-chain clarity, and tone/orthography precision, drawing on consolidated Volume III and Chapter 6 systems plus this chapter's newly developed structures.
Answer Key
Listening Practice Questions
- Every market vendor is required to turn off their generator when not in use and to store it where it cannot cause a fire.
- One must not block the escape route with goods, and one must not cook with fire inside a market stall after the eight authorized hours.
- Someone who breaks these rules may face a fine or have their market permit withdrawn for a period.
Reading Practice Questions
- Every school transport vehicle must have a first-aid kit at all times.
- It is prohibited to carry more students than the set limit in a single vehicle.
- A driver who breaks this rule may face a fine or have their driving permit withdrawn.
- Sample: "A fẹ́ kí gbogbo ohun tí a bá ń béèrè lọ́wọ́ àwọn awakọ̀ jẹ́ ohun tí ó bá ìtọ́ni ìjọba mu gan-an..." is a direct quotation expressing the parents' representative's stance that requirements should match the government notice rather than each school's own choice.
Guided Practice — Sample Responses
1. "Ó jẹ́ dandan pé gbogbo alágbàṣe ọjà ní kí wọ́n pa iná mọ́tò wọn nígbà tí wọn kò bá ń lò ó" is the obligation sentence. 2. "A kò gbọdọ̀ dí ọ̀nà àbáyọ pẹ̀lú ẹrù" is the prohibition sentence. 3. "Bí ẹnikẹ́ni bá rú òfin yìí, ó lè jẹ ìjìyà owó" is the conditional sentence. 4. Sample: Ó ṣeéṣe kí ọ́fíìsì aláṣẹ ṣe àyẹ̀wò àfikún ní ọjọ́ tí a kò rò pé.
Chapter Review — Apá A
1. Sample: Ó jẹ́ dandan pé gbogbo akẹ́kọ̀ọ́ ní kí wọ́n dé ilé-ìwé ṣáájú wákàtí mẹ́jọ́. 2. Sample: A kò gbọdọ̀ mú sìgá wọ inú ilé-ìwé. 3. Sample: Bí olùkọ́ bá rí i pé akẹ́kọ̀ọ́ kan rú òfin, ó lè kọ ìwé ìkìlọ̀ kan; ó ṣeéṣe kí wọ́n pe àwọn òbí wá pàdé.
Chapter Review — Apá B
Self-check items have no single fixed answer. Confirm your responses against the cumulative review checklist above.
Independent Study Tools
Fún akẹ́kọ̀ọ́ tí ń kọ́ ẹ̀kọ́ fúnra rẹ̀ — For the independent learner
- Keep a small list of obligation, prohibition, conditional, and hedge phrases you can reuse when discussing rules or notices.
- Read one short Yorùbá rule, policy, or safety notice each day this week and identify what it requires, forbids, and hedges.
- Ask a Yorùbá-speaking friend, tutor, or colleague to check whether your obligation and prohibition sentences sound natural.
- Compare your summary to the model notice and note any structural differences.
Looking Ahead
Ohun tí o lè ṣe báyìí — What you can do now
You can now express obligation, formal prohibition, and conditional consequence, hedge uncertain outcomes responsibly, and summarize a policy- or rule-like text in Standard Written Yorùbá without overclaiming specialist expertise.