Question Formation in Finnish

In Brief

Finnish forms a basic yes/no question by attaching -ko/-kö to the conjugated verb and putting that verb first: Puhut suomea (“You speak Finnish”) becomes Puhutko suomea? (“Do you speak Finnish?”). To ask for specific information, begin with a question word such as missä (“where”), milloin (“when”), miten (“how”), or miksi (“why”): Missä asut? (“Where do you live?”).

Overview

Questions are one of the most useful A1 building blocks. Once you can make a present-tense statement, you can ask whether it is true by adding -ko/-kö. You can also replace the missing information with a question word: Asut Helsingissä (“You live in Helsinki”) becomes Missä asut? (“Where do you live?”).

This differs from English in two important ways. Finnish has no question-making equivalent of English do/does: the ending -ko/-kö does that job. Finnish also does not need to place a separate subject before the verb. Because a Finnish verb ending often shows who the subject is, sinä (“you”) can be omitted from Missä (sinä) asut?

The beginner rules are highly regular, but Finnish question words can change form. These changes are not random: Finnish uses cases (endings that show a word's role, such as location or object). Learning related sets such as missä–mistä–mihin will make your questions much more precise.

How It Works

Yes/no questions: add -ko or -kö

Begin with the finite verb (the conjugated verb that shows person and tense), attach -ko/-kö, and place it at the beginning.

Statement	Question	Meaning
Sinä puhut suomea.	Puhutko sinä suomea?	Do you speak Finnish?
Hän asuu täällä.	Asuuko hän täällä?	Does he/she live here?
Te olette valmiita.	Oletteko te valmiita?	Are you ready?
Liisa tulee tänään.	Tuleeko Liisa tänään?	Is Liisa coming today?

Use -ko if the word contains a, o, or u; use -kö if it contains only the front vowels ä, ö, or y (and possibly the neutral vowels e, i). This is vowel harmony, the Finnish pattern that makes endings match the vowels in a word.

Form	Question form	Meaning
puhut	puhutko?	do you speak?
on	onko?	is it?/does ... have?
menet	menetkö?	are you going?
syöt	syötkö?	do you eat?
tiedät	tiedätkö?	do you know?

Attach the particle directly, with no space or hyphen: oletko, not olet ko or olet-ko. The verb is already conjugated before the particle is added: puhu-t-ko (“speak-you-question”), not an infinitive such as puhuako in an ordinary “do you speak?” question.

The full subject pronoun is possible, but often unnecessary:

• Puhutko suomea? — neutral and natural
• Puhutko sinä suomea? — possible; sinä may add contrast or make the subject explicit
• Puhuuko hän suomea? — the pronoun matters because the third-person verb does not identify gender or the person concerned

English changes you speak to do you speak. Finnish keeps the same personal verb form puhut and adds the particle: puhut + ko.

Questions with olla (“to be”)

The same rule applies to olla. Its common forms produce very frequent questions.

Person	Statement form	Question form	English
minä	olen	olenko?	am I?
sinä	olet	oletko?	are you?
hän/se	on	onko?	is he/she/it?
me	olemme	olemmeko?	are we?
te	olette	oletteko?	are you?
he/ne	ovat	ovatko?	are they?

In the common possession pattern, onko comes first: Onko sinulla aikaa? literally has the shape “Is at-you time?” but naturally means “Do you have time?”

Information questions: put the question word first

A question-word question asks for missing information rather than a yes or no. Put the question word or question phrase first. Do not also add -ko/-kö to the verb in an ordinary information question.

Question word	Basic meaning	Example
mikä	what; which	Mikä tämä on? — What is this?
kuka	who	Kuka hän on? — Who is he/she?
missä	where (in/at)	Missä asut? — Where do you live?
mistä	where from	Mistä tulet? — Where do you come from?
mihin / minne	where to	Mihin menet? — Where are you going?
milloin	when	Milloin kurssi alkaa? — When does the course start?
miten / kuinka	how	Miten voit? — How are you?
miksi	why	Miksi opiskelet suomea? — Why are you studying Finnish?
millainen	what kind of	Millainen sää on? — What is the weather like?
kuinka paljon / monta	how much / how many	Kuinka paljon tämä maksaa? — How much does this cost?

The normal pattern is:

question word or phrase + verb + subject + other information

• Missä Liisa asuu? — Where does Liisa live?
• Milloin juna lähtee? — When does the train leave?
• Miksi sinä naurat? — Why are you laughing?

When the question word itself is the subject—the person or thing performing the action—the verb is normally third-person singular:

• Kuka tulee? — Who is coming?
• Mikä auttaa? — What helps?

There is no extra equivalent of English does: not “Who does come?” but simply Kuka tulee?

Mikä or mitä? Kuka or ketä?

English often uses one form, what or who, where Finnish changes the question word according to its grammatical role.

Mikä commonly asks someone to identify or define a single thing. Mitä is the partitive form and commonly asks about an activity, an unbounded substance, or the object of verbs that require the partitive.

• Mikä tämä on? — What is this?
• Mikä sinun nimesi on? — What is your name?
• Mitä teet? — What are you doing?
• Mitä juot? — What are you drinking?
• Mitä kieltä puhut? — What language do you speak?

Likewise, kuka is the basic subject form, while ketä commonly asks about a person as a partitive object:

• Kuka soittaa? — Who is calling?
• Ketä odotat? — Who are you waiting for?

You do not need to master every case form at A1, but learn each common question as a whole rather than assuming that mikä and kuka work everywhere.

Location questions form a three-way set

Finnish distinguishes location, movement away, and movement toward. English often uses where for all three.

Meaning	Question	Typical answer
location: where?	Missä olet?	Olen kotona. — I am at home.
origin: where from?	Mistä tulet?	Tulen Suomesta. — I come from Finland.
destination: where to?	Mihin menet? / Minne menet?	Menen kauppaan. — I am going to the store.

The verb gives an important clue: olla (“be”) usually asks for location, tulla (“come”) for origin, and mennä (“go”) for destination.

Negative questions

Finnish negation uses a separate negative verb, which changes for person: en, et, ei, emme, ette, eivät. In a negative yes/no question, -ko/-kö attaches to that negative verb.

Positive question	Negative question	Meaning
Tiedätkö?	Etkö tiedä?	Don't you know?
Tuleeko hän?	Eikö hän tule?	Isn't he/she coming?
Menemmekö nyt?	Emmekö mene nyt?	Aren't we going now?
Ovatko he kotona?	Eivätkö he ole kotona?	Aren't they at home?

Negative questions may express surprise, expectation, or a request for confirmation, just as they do in English. Because “yes” and “no” can become unclear in replies to negative questions, repeating the verb is often safest.

Answering naturally

Kyllä means “yes” and ei means “no,” but Finnish often answers by repeating the relevant verb. The repeated verb agrees with the speaker.

• Puhutko suomea? — Puhun. / Kyllä, puhun. (“Yes, I do.”)
• Asuuko hän täällä? — Asuu. (“Yes, he/she does.”)
• Onko sinulla aikaa? — On. (“Yes, I have.”)
• Tuletko huomenna? — En tule. (“No, I won't / I'm not coming.”)

English uses do as a short answer; Finnish repeats the actual verb. This is a useful habit to build from the beginning.

Examples in Context

Finnish	English	Note
Puhutko suomea?	Do you speak Finnish?	Basic yes/no question
Oletko vapaa illalla?	Are you free this evening?	-ko attached to olet
Syötkö lihaa?	Do you eat meat?	Front-vowel form -kö
Onko sinulla aikaa?	Do you have time?	Finnish possession pattern
Missä sinä asut?	Where do you live?	Location; sinä may be omitted
Mistä tämä bussi tulee?	Where does this bus come from?	Origin
Mihin olet menossa?	Where are you going?	Destination
Milloin kauppa sulkeutuu?	When does the store close?	Time question
Mikä sinun nimesi on?	What is your name?	Identification with mikä
Mitä haluat juoda?	What do you want to drink?	mitä as object
Kuka soittaa pianoa?	Who is playing the piano?	kuka is the subject
Ketä sinä odotat?	Who are you waiting for?	Partitive object ketä
Miten voit tänään?	How are you today?	Manner/state question
Miksi opiskelette suomea?	Why are you studying Finnish?	Plural or polite you
Etkö juo kahvia?	Don't you drink coffee?	Negative question

Common Mistakes

Using an English-style equivalent of “do”

• Wrong: Teetkö sinä puhua suomea?
• Right: Puhutko sinä suomea? or, more naturally, Puhutko suomea?
• Why: Finnish attaches -ko/-kö directly to the conjugated main verb. It does not insert an auxiliary meaning “do.”

Separating the question particle

• Wrong: Puhut ko suomea?
• Right: Puhutko suomea?
• Why: -ko/-kö is a clitic (a short element attached to another word), so it is written as part of that word.

Choosing -ko when vowel harmony requires -kö

• Wrong: Syötko kalaa?
• Right: Syötkö kalaa?
• Why: syöt contains the front vowel ö, so the matching form is -kö.

Adding -ko/-kö to an ordinary question-word question

• Wrong: Missäkö asut? when you simply mean “Where do you live?”
• Right: Missä asut?
• Why: The question word already marks the sentence as an information question. Missäkö? is possible only with special contrastive force, roughly “In where?” or “Is it where...?”, not as the neutral beginner pattern.

Treating missä, mistä, and mihin as interchangeable

• Wrong: Missä menet? when asking for a destination
• Right: Mihin menet? or Minne menet?
• Why: missä asks about a location, while mihin/minne asks where movement is directed.

Using mikä in every “what” question

• Wrong: Mikä teet?
• Right: Mitä teet?
• Why: The question word changes according to its role. In this common expression, “what” is the object of teet, so Finnish uses mitä.

Usage Notes

In neutral written Finnish, yes/no questions have the verb with -ko/-kö near the beginning. Intonation still helps listeners hear the question, but intonation alone is not the standard way to turn a neutral statement into a yes/no question.

Subject pronouns are especially easy to omit with first- and second-person verbs: Tuletko? already means “Are you coming?” Saying Tuletko sinä? is grammatical, but it can emphasize “you” in contrast with someone else. With names and third-person pronouns, the subject is more often expressed: Tuleeko Anna?; Tuleeko hän?

Everyday spoken Finnish uses shorter pronouns and verb forms. You may hear Missä sä asut? instead of standard Missä sinä asut?, or Ootsä valmis? instead of Oletko sinä valmis? These are common colloquial forms, but the standard forms are the best starting point for writing and for clear, widely understood speech.

Miten and kuinka can both mean “how.” Miten voit? is the usual “How are you?”, while kuinka is common in measurement phrases such as Kuinka paljon? (“How much?”) and Kuinka kauan? (“How long?”). Usage overlaps, so learn frequent combinations rather than seeking a single English-to-Finnish substitution.

Beyond the Basics / Advanced Use

You do not need to produce the following patterns at A1, but you will meet them later.

The focused word can carry -ko/-kö

Although the beginner pattern attaches the particle to the verb, -ko/-kö can attach to another first element to ask specifically about that element. This changes the focus.

• Tuliko Anna eilen? — Did Anna come yesterday? (neutral question about the event)
• Annako tuli eilen? — Was it Anna who came yesterday?
• Eilenkö Anna tuli? — Was it yesterday that Anna came?
• Suomeako puhut? — Is it Finnish that you speak?

This flexibility explains why -ko/-kö is better understood as a question-and-focus particle than merely a verb ending. For beginner questions, however, “conjugated verb + -ko/-kö first” remains the reliable rule.

Question words decline further

Question words take many of the same case endings as nouns and pronouns. Common forms include:

Basic form	Other form	Meaning in a question
mikä	minkä	what/which one's; what as a total object
mikä	millä	with what; by what
kuka	kenen	whose
kuka	kenelle	to whom
kuka	keneltä	from whom

For example, Kenen kirja tämä on? means “Whose book is this?”, and Millä maksat? means “What will you pay with?” These forms become easier as you learn the Finnish case system.

Politeness and softening

A grammatically direct question is not necessarily rude, but requests are often softened with the conditional -isi- (“would/could”):

• Voitko auttaa? — Can you help?
• Voisitko auttaa? — Could you help?
• Saisinko kahvin? — Could I have a coffee?

You may also see -han/-hän after the question particle, as in Onkohan kauppa auki? (“I wonder if the store is open”). This adds tentativeness or wondering and belongs beyond the basic A1 pattern.

Indirect questions

An indirect question is a question embedded inside a larger sentence. It keeps the Finnish question marker or question word:

• Tiedätkö, missä asema on? — Do you know where the station is?
• En tiedä, tuleeko hän. — I don't know whether he/she is coming.

Notice tuleeko in the second example. Here -ko corresponds to English “whether/if,” not to a direct question mark.

Practice Tips

1. Transform statements aloud. Take five present-tense sentences each day and move the verb to the front with -ko/-kö: Sinä luet kirjaa → Luetko kirjaa? Say a full short answer too: Luen or En lue.
2. Learn question words in families. Put missä–mistä–mihin on one card with the meanings “where–where from–where to.” Do the same with useful chunks such as Mikä tämä on?, Mitä teet?, and Kenen tämä on?
3. Run a one-minute interview. Ask yourself or a partner six questions beginning with oletko, missä, mistä, milloin, miten, and miksi. Reuse familiar vocabulary so your attention stays on the question pattern.

Related Concepts

• Prerequisite: Present Tense — provides the conjugated verb forms that take -ko/-kö.