Focus and Cleft Constructions in Yoruba

Ìtẹnumọ́ àti Gbólóhùn Ìpín

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In Brief

Yoruba can highlight an element by placing it before the focus marker ni and following it with a clause: Adé ni ó lọ means “It was Ade who went,” while neutral Adé lọ simply means “Ade went.” The focused element may be a person, thing, time, place, or question word: Ìwé ni mo ra “It was a book that I bought”; Kí ni o ṣe? “What did you do?”

Overview

Focus means presenting one part of a message as the important new answer, correction, or contrast. English often relies on strong vocal stress—“ADE went,” not Bola—or uses a cleft sentence beginning with “It is/was…”. Yoruba commonly marks the same information in the grammar itself: the highlighted expression comes first and is followed by ni.

This is a B2 topic because forming the pattern confidently requires more than memorizing ni. You need to identify the role of the focused phrase and build the clause after ni correctly. A subject (the person or thing doing the action) is represented differently from an object (the person or thing affected by the action). Earlier knowledge of relative clauses also helps, because the clause after ni supplies information about the fronted expression.

These constructions are normal in conversation. They answer questions, reject assumptions, identify people, and locate events in time or space. They do not necessarily sound as dramatic as a full English “It was X that…” sentence; in context, that translation may simply be the most natural way to show the Yoruba information structure.

How It Works

The core pattern

Message type	Structure	Example	Natural English
Neutral	ordinary clause	Adé lọ.	Ade went.
Focus	focused phrase + ni + clause	Adé ni ó lọ.	It was Ade who went.
Focus question	question expression + ni + clause	Ta ni ó lọ?	Who went?

The focused phrase is the expression selected as the answer or contrast. Ni comes immediately after that phrase. The rest of the sentence is a clause: a group of words containing the statement made about the focused phrase.

Do not confuse focus ni with every other form that looks or sounds similar. Yoruba also uses ni as a linking word in identification, as in Adé ni olùkọ́ “Ade is the teacher,” and ní occurs in other grammatical roles. Tone marks matter in careful writing, so learn each construction as a complete pattern rather than treating all instances as interchangeable.

Subject focus: retain a subject pronoun

When the focused expression is the subject, the clause after ni normally contains a matching subject pronoun:

Focused subject	Pronoun in the clause	Complete sentence
Adé	ó	Adé ni ó lọ.
Èmi	mo	Èmi ni mo ṣe é.
Ìwọ	o	Ìwọ ni o pè mí.
Àwọn ọmọ	wọ́n	Àwọn ọmọ ni wọ́n dé.

This pronoun is sometimes called resumptive: it “resumes,” or points back to, the focused subject. English does not repeat the subject in the same way. A literal imitation such as “It is Ade he went” is therefore not useful as an English model, but the Yoruba pronoun is part of the Yoruba structure.

The pronoun must agree with the focused subject. Use ó for a third-person singular person or thing and wọ́n for a plural subject. With emphatic independent pronouns such as èmi “me/I” and ìwọ “you,” the ordinary clause pronoun still follows ni: Èmi ni mo mọ̀ “I am the one who knows.”

Object focus: leave the object position empty

For object focus, move the object before ni and do not repeat it in its normal position after the verb:

Neutral statement	Focused statement
Mo ra ìwé. “I bought a book.”	Ìwé ni mo ra. “It was a book that I bought.”
Wọ́n rí Adé. “They saw Ade.”	Adé ni wọ́n rí. “It was Ade they saw.”
Ó fẹ́ omi. “He/she wants water.”	Omi ni ó fẹ́. “It is water that he/she wants.”

The missing position after the verb is called a gap: listeners understand that it belongs to the expression placed before ni. English learners often want to add an object pronoun because English permits sentences such as “That book, I bought it.” That is a topic pattern, not the basic Yoruba ni focus pattern.

Notice that ó in Omi ni ó fẹ́ is the subject “he/she,” not a repeated form of omi. Ask who performs the action and what receives it before deciding whether a pronoun belongs after ni.

Focusing time, place, and other circumstances

An adjunct is extra information about circumstances such as when, where, how, or why something happens. It can also be focused:

Type	Pattern	Example
Time	time phrase + ni + clause	Lánàá ni ó ti ṣẹlẹ̀. “It was yesterday that it happened.”
Future time	time phrase + ni + clause	Ọ̀la ni wọ́n máa dé. “It is tomorrow that they will arrive.”
Place	place phrase + ni + clause	Ọjà ni mo ti rí i. “It was at the market that I saw it.”
Manner	manner expression + ni + clause	Bẹ́ẹ̀ ni mo ṣe é. “That is how I did it.”

With a place expression, ti may appear in the following clause to express the relation “from/at,” depending on the verb and intended meaning. Learn such examples as complete combinations; do not assume that moving a place word always allows every preposition-like element to disappear.

Aspect markers remain in the clause. In Ọ̀la ni wọ́n máa dé, máa still gives the future or expected reading. In Lánàá ni ó ti ṣẹlẹ̀, ti remains part of the event’s aspect. Focus changes information structure, not the event’s time or aspect by itself.

Focus questions

Many Yoruba content questions use the same structure. The question expression occupies the focus position, followed by ni:

Question	Role of the answer	Possible answer
Ta ni ó wá? “Who came?”	subject	Adé ni ó wá.
Kí ni o ṣe? “What did you do?”	object	Iṣẹ́ ni mo ṣe.
Ìgbà wo ni wọ́n dé? “When did they arrive?”	time	Lánàá ni wọ́n dé.
Ibo ni o ń lọ? “Where are you going?”	place	Ọjà ni mo ń lọ.

The shape of the clause reveals the question word’s role. In Ta ni ó wá?, ó resumes a subject. In Kí ni o ṣe?, there is no object after ṣe, because kí fills that role. This question–answer parallel is one of the best ways to internalize focus.

Focus is not the same as a relative clause

A relative clause describes a noun: ìwé tí mo rà “the book that I bought.” A focus construction asserts that a phrase is the selected answer: Ìwé ni mo ra “It was a book that I bought.” The marker tí links a noun to a description, while focus ni marks highlighted information.

Construction	Yoruba	Function
Relative clause	ìwé tí mo rà	identifies/describes a book
Focus construction	Ìwé ni mo ra.	selects “book” as the answer or contrast
Topic-comment	Ìwé yẹn, mo ti kà á.	announces the book as the topic, then comments on it

The topic example includes á, referring back to ìwé yẹn. In the object-focus example, the ordinary object position is a gap. This contrast becomes especially important in longer discourse.

Examples in Context

Yoruba	English	Note
Adé ni ó lọ.	It was Ade who went.	Singular subject focus
Àwọn ọmọ ni wọ́n ṣẹ́gun.	It was the children who won.	Plural subject focus
Èmi ni mo kọ lẹ́tà náà.	I was the one who wrote the letter.	Emphatic pronoun as focus
Ìwọ ni o sọ bẹ́ẹ̀.	You were the one who said that.	Contrastive “you”
Ìwé ni mo ra.	It was a book that I bought.	Object focus; no object repeated
Adé ni wọ́n pè.	It was Ade that they called.	Person as focused object
Omi ni ó nílò.	It is water that he or she needs.	The following ó is the subject
Lánàá ni ó ti ṣẹlẹ̀.	It was yesterday that it happened.	Time focus
Ọ̀la ni wọ́n máa ṣe é.	It is tomorrow that they will do it.	Future time remains marked by máa
Ọjà ni mo ti rí i.	It was at the market that I saw it.	Place focus
Bẹ́ẹ̀ ni mo ṣe é.	That is how I did it.	Manner focus
Ta ni ó dé kọ́kọ́?	Who arrived first?	Subject question
Kí ni o ṣe?	What did you do?	Object question
Ìgbà wo ni ẹ máa padà?	When will you return?	Time question; respectful/plural ẹ
Ibo ni wọ́n ń gbé?	Where do they live?	Place question

Common Mistakes

Omitting the pronoun after a focused subject

Wrong: Adé ni lọ.
Right: Adé ni ó lọ.
Why: A focused subject is normally represented by a subject pronoun in the following clause. Here ó points back to Adé.

Repeating a focused object

Wrong: Ìwé ni mo rà á. (intended: “It was a book that I bought.”)
Right: Ìwé ni mo ra.
Why: In the basic object-focus pattern, the fronted object corresponds to a gap after the verb. Repeating it with an object pronoun changes the structure toward a topic-comment pattern.

Treating every sentence-initial phrase as focus

Wrong analysis: Assuming Ìwé yẹn, mo ti kà á has the same structure as Ìwé ni mo ra.
Right distinction: Ìwé yẹn, mo ti kà á means “As for that book, I have read it”; Ìwé ni mo ra selects “book” as what was bought.
Why: A topic tells the listener what the sentence is about. Focus identifies the key answer or contrast and is explicitly marked here by ni.

Using tí where focus ni is required

Wrong: Adé tí ó lọ. (as a complete answer meaning “It was Ade who went”)
Right: Adé ni ó lọ.
Why: Tí introduces a relative description, such as “Ade who went,” but does not by itself make the complete focus assertion.

Losing aspect while rearranging the sentence

Wrong: Ọ̀la ni wọ́n dé. (if the intended meaning is explicitly future)
Right: Ọ̀la ni wọ́n máa dé.
Why: Moving ọ̀la into focus does not automatically supply future meaning. Keep the aspect or future marker required by the message.

Copying English stress without changing the Yoruba structure

Weak for explicit correction: Mo ra ìwé said with an English-style heavy stress on ìwé.
Clear focus: Ìwé ni mo ra.
Why: Intonation matters in speech, but the ni construction gives an unambiguous grammatical contrast. It is the dependable pattern to learn and write.

Usage Notes

Focus is guided by context. A neutral sentence reports an event; a focus sentence identifies the element that resolves an open question. Adé lọ can begin a simple report. Adé ni ó lọ is especially natural when the listener has asked who went, when several people are possible, or when the speaker corrects a mistaken name.

English translations with “It is/was…” are useful teaching aids, but they can overstate the dramatic effect. Yoruba focus occurs routinely in information questions and their answers. Translate for meaning, not word for word: depending on context, Ta ni ó wá? is simply natural Yoruba for “Who came?”

Written Yoruba marks tones and underdots that distinguish forms and support accurate reading. Learners will encounter informal digital writing with fewer marks, but that is not a reason to omit them while studying. In particular, keep ni and ní distinct in careful writing and pay attention to forms such as ó, ọ̀la, and ìwé.

The exact shape of a natural focus sentence can interact with the verb, pronouns, aspect, and the relation of a place or other complement to the verb. When an example contains ti, sí, or another relational element, do not remove it merely because an expression has moved to the front.

Beyond the Basics: Focus in Larger Discourse

Focus and clefting form part of information structure—the way speakers organize what is already under discussion and what they present as the crucial update. Compare these three choices:

Mo ra ìwé. — a neutral report: “I bought a book.”
Ìwé ni mo ra. — focus: “A book is what I bought,” perhaps not food.
Ìwé yẹn, mo rà á. — topic-comment: “That book, I bought it.”

The second sentence chooses ìwé as the answer from alternatives. The third starts from a book already available in the conversation and says something about it. Real conversations may combine focus with contrast, correction, or an established topic, so the intended interpretation depends on what was said before.

Focus can also contain a larger phrase, not just one word. In Ìwé tuntun náà ni mo ra, “It was the new book that I bought,” the entire noun phrase ìwé tuntun náà is focused. A noun phrase is a noun together with words that belong to it, here “the new book.” Keep ni after the whole focused unit rather than inserting it inside that unit.

Longer cleft-like sentences can use relative material as the focused expression: Ohun tí mo mọ̀ ni pé ó dára means “What I know is that it is good.” Here ohun tí mo mọ̀ “what I know” is itself built with a relative clause, and ni links it to the following content. At this level, first master simple person, object, time, and question focus; then notice how familiar pieces can be nested inside larger constructions.

Pronouns can make contrast especially sharp: Èmi ni mo ṣe é “I am the one who did it” and Ìwọ ni o sọ bẹ́ẹ̀ “You are the one who said that.” Such forms are appropriate when identity matters, but constant explicit focusing can sound needlessly corrective. Use neutral clauses when no alternative is being selected.

Practice Tips

Build question–answer pairs. Write Ta ni ó wá? — Adé ni ó wá and Kí ni o ra? — Ìwé ni mo ra. Check whether the answer needs a resumptive subject pronoun or an object gap.
Transform one neutral sentence several ways. Start with Adé ra ìwé lánàá “Ade bought a book yesterday.” Focus the subject (Adé ni…), object (Ìwé ni…), and time (Lánàá ni…) while preserving the rest of the meaning.
Listen for the discourse reason. In Yoruba interviews or conversations, note not only each ni construction but what it answers: identity, correction, time, place, or contrast. This prevents the pattern from becoming an empty word-order exercise.

Related Concepts

Prerequisite: Relative Clauses (Tí) — helps you understand the clause relationships that underlie more complex focus patterns.
Next step: Cleft Sentences and Emphasis — develops the use of fronted constituents and ni for deliberate emphasis.
Advanced connection: Topic-Comment and Information Structure — contrasts focus with topics and examines how both organize longer discourse.