The Turkish Question Particle: mı, mi, mu, mü
Turkish has no equivalent of 'do' in 'Do you speak Turkish?', and it does not turn a statement into a question by rearranging the words. Instead it adds one small particle, spelled mı, mi, mu or mü, and the sentence becomes a yes-or-no question. That is the entire mechanism, and it works on verbs, nouns, adjectives and pronouns alike.
The particle is easy to form and easy to misplace. It follows vowel harmony like a suffix, it is written as a separate word like an independent word, and person endings attach to it rather than to the verb in most tenses. This guide covers all of that, plus the two constructions where the particle stops asking a question and starts doing something else entirely.
One Particle, Four Shapes
The particle follows four-way vowel harmony with the last vowel of the word in front of it. A back unrounded vowel gives mı, a front unrounded vowel gives mi, a back rounded vowel gives mu, and a front rounded vowel gives mü. Nothing else changes it — the particle has no consonant variants and no exceptions.
Because the choice depends on the preceding word rather than on the verb itself, the same verb can take different particles in different sentences. Geliyor ends in o, a back rounded vowel, so it takes mu. Geldi ends in i, so it takes mi. Getting into the habit of looking only at the last vowel before the particle saves a lot of second-guessing.
Written Apart, Pronounced Together
Turkish spelling puts a space before the particle: Geliyor mu?, never 'Geliyormu?'. This is a firm rule and one of the most common mistakes in learner writing. Yet the particle behaves phonologically like a suffix — it harmonises with the word before it and is spoken as part of the same breath group, with no pause.
It also carries no stress of its own. Turkish stress normally falls on a word's last syllable, but the particle pushes it back: in Geliyor mu? the stress lands on the syllable immediately before it. Learners who read the space as a real word boundary tend to stress the particle and sound distinctly foreign. In short: write it apart, say it as if glued on.
- Always a space before the particle, never joined to the previous word.
- Person endings, by contrast, attach to the particle with no space: misin, musunuz.
- The particle is never stressed; stress falls on the syllable just before it.
- Its vowel harmonises with the word in front, exactly like a suffix.
Where the Person Endings Go
In most tenses the person ending does not stay on the verb — it moves onto the particle. Take geliyorsun, 'you are coming'. The question is not 'Geliyorsun mu?' but Geliyor musun?, with the ending detached from the verb and reattached to mu. The same happens with nouns and adjectives, which take person endings directly: öğrenciyim becomes Öğrenci miyim?
The first-person endings need a buffer y, because they begin with a vowel and the particle ends in one: mu plus -yum gives muyum, and mi plus -yiz gives miyiz. Third-person plural is the exception in the other direction: the -lar ending stays on the verb and the particle follows the whole thing, as in Geliyorlar mı?
Written out, the pattern for one verb looks like this: Geliyor muyum?, Geliyor musun?, Geliyor mu?, Geliyor muyuz?, Geliyor musunuz?, Geliyorlar mı? Drill that column once with a back rounded verb and once with a front unrounded one and the whole system is covered.
The Past-Tense Exception
There is one important place where the person ending does not move: the witnessed past in -dı. That tense uses a short set of endings that are welded to the verb, so the particle simply follows the finished word. Geldin mi? means 'Did you come?', and 'Geldi misin?' is not Turkish at all.
Set the two past tenses next to each other and the contrast is easy to remember. The witnessed past keeps its ending: Geldiniz mi?. The reported past in -mış uses the longer endings, so they migrate: Gelmiş misiniz?. If you can produce both of those on demand, you have the placement rule for every tense you are likely to meet as a beginner.
Position Decides What You Are Asking
The particle does not have to sit at the end of the sentence. It attaches to whichever element you are questioning, and moving it shifts the focus in the same way English shifts it with emphatic stress. Placed after the verb, it asks about the event as a whole; placed after a noun or adverb, it asks specifically about that piece.
Compare three versions of one situation. Ali kitabı okudu mu? asks 'Did Ali read the book?'. Kitabı Ali mi okudu? asks 'Was it Ali who read the book?'. Ali kitabı mı okudu? asks 'Was it the book that Ali read?'. Only the particle moved, and each version invites a different answer — a quiet advantage of a language that marks roles with case endings rather than word order.
Question Words Never Take the Particle
The particle forms yes-or-no questions only. If the sentence already contains a question word — ne (what), kim (who), nerede (where), nasıl (how), neden (why), kaç (how many), hangi (which) — the particle is not used, because the sentence is not asking for a yes or a no.
So 'Where do you live?' is Nerede oturuyorsun?, with no particle anywhere. Adding one would be like saying 'Do where do you live?'. This is a clean division to remember: question word or particle, never both.
Choices, Tags and Emphasis
Two very common constructions reuse the particle for something other than a plain question. The first is offering alternatives: repeat the particle after each option and you get the Turkish equivalent of 'X or Y'. Çay mı, kahve mi? means 'Tea or coffee?', and each particle harmonises with the word directly before it, which is why they differ here.
The second is the emphatic repetition, where an adjective is doubled around the particle to mean 'extremely'. Güzel mi güzel means something like 'gorgeous beyond words', and Soğuk mu soğuk means 'absolutely freezing'. There is no question being asked at all — the particle is acting as an intensifier, and it is a very natural, spoken-Turkish thing to say. Related is the tag question değil mi?, the exact counterpart of 'isn't it?', which turns any statement into an invitation to agree.
None of these need memorising as separate grammar; they are the same particle doing recognisable jobs. The quickest way to make it automatic is to hear the particle in real sentences and answer them aloud, since its unstressed rhythm is easier to copy than to describe. The structured lessons and spaced review will get you there faster than any table.
Frequently asked questions
Is the Turkish question particle written together with the verb?
No. It is always written as a separate word with a space before it: Geliyor mu?, never 'Geliyormu?'. Person endings, however, attach to the particle itself with no space, giving forms like musun and miyiz.
Which form do I use: mı, mi, mu or mü?
Whichever matches the last vowel of the word in front of it, by four-way harmony. Back unrounded gives mı, front unrounded gives mi, back rounded gives mu, front rounded gives mü. The verb's own vowels elsewhere do not matter.
Why is it Geliyor musun? but Geldin mi?
The present continuous uses long person endings that move onto the particle, while the witnessed past in -dı uses short endings that stay welded to the verb. So the ending migrates in one tense and not the other.
Can I use the particle with words like nerede or ne?
No. The particle only makes yes-or-no questions, so a sentence with a question word does not take it. 'Where do you live?' is simply Nerede oturuyorsun?, with no particle.
Put it into practice
Hafiza covers this with structured lessons, spaced repetition, and quizzes — start free, no account needed.
Start learning free