Embedded Questions | Finnish Grammar

An embedded (indirect) question is a question tucked inside a larger sentence as the complement of a verb like tietää ("know"), kysyä ("ask"), kertoa ("tell"), muistaa ("remember") or miettiä ("wonder"): En tiedä, tuleeko hän ("I don't know whether he's coming"). Finnish builds these very differently from English, and it does so with total consistency — once you see the mechanism, every embedded question follows the same rule. The good news: unlike English, there is no separate word for "whether/if" to remember. The clitic does that job.

Yes/no questions: the clitic -ko/-kö

An embedded yes/no question fronts the focused verb to the start of the clause and glues the interrogative clitic -ko/-kö onto it. That is the whole construction — no conjunction, no inversion of the English kind.

En tiedä, tuleeko hän tänään.

I don't know whether he's coming today.

Kysyin, oliko kauppa vielä auki.

I asked whether the shop was still open.

Katso, onko posti jo tullut.

Check whether the mail has come yet.

The clitic obeys vowel harmony: -ko after back-vowel words, -kö after front-vowel words. This is not optional — meneekö and tuleeko are both correct because they harmonise with their own stems.

Verb	clitic	Harmony
tulee (comes)	tuleeko	back → -ko
menee (goes)	meneekö	front (mennä) → -kö
on (is)	onko	back → -ko
sataa (rains)	sataako	back → -ko
näkyy (shows)	näkyykö	front → -kö

Wh-questions: keep the question word

An embedded wh-question needs no clitic at all — the question word (missä, kuka, milloin, miksi, mitä, kuinka) is already interrogative, so it simply stays put at the front of the clause and the word order returns to normal statement order.

En tiedä, missä hän asuu.

I don't know where he lives.

Kerro, kuka soitti.

Tell me who called.

Muistatko, milloin juna lähtee?

Do you remember when the train leaves?

Mietin, miksi hän ei vastannut.

I'm wondering why he didn't answer.

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English keeps its question-word order after "I don't know" only sometimes ("I don't know where he lives," but "*where does he live"). Finnish is simpler and more consistent: after the fronted question word, use plain statement order every time — missä hän asuu, never missä asuuko hän.

Softening with the conditional

Slipping the conditional -isi- into an embedded question makes it more tentative and polite — the difference between a blunt "whether he'll come" and a softer "whether he might come." The clitic then rides on the conditional form.

Kysyin, tulisiko hän mukaan.

I asked whether he might come along.

Mietin, kannattaisiko odottaa vielä hetki.

I'm wondering whether it would be worth waiting a moment longer.

The jos trap: -ko, not "if"

Here is the error that English speakers make almost every time. English "if" is ambiguous — it introduces both real conditions ("if it rains") and embedded yes/no questions ("I don't know *if he's coming"). Finnish splits these into two different words. Conditional "if" is jos; embedded-question "whether" is the clitic *-ko/-kö. They are not interchangeable.

En tiedä, tuleeko hän.

I don't know whether he's coming. — the correct embedded question

En tule, jos sataa.

I won't come if it rains. — jos = real condition, a different meaning entirely

Writing En tiedä, jos hän tulee does not mean "I don't know whether he's coming." A Finn parses it as "I don't know, in case he comes" — grammatical noise. Always reach for the clitic.

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The clitic marks exactly the element in doubt, so moving it changes the meaning. Tuleeko hän? questions the coming ("Is he coming?"); Hänkö tulee? questions the person ("Is it he who's coming?"). Put -ko/-kö on whatever is genuinely uncertain.

Common Mistakes

❌ En tiedä, jos hän tulee.

Incorrect — jos is conditional 'if', not 'whether'; use the clitic.

✅ En tiedä, tuleeko hän.

I don't know whether he's coming.

❌ Kysyin, hän tulee.

Incorrect — an embedded yes/no question must carry -ko on the fronted verb.

✅ Kysyin, tuleeko hän.

I asked whether he's coming.

❌ En tiedä, hän tuleeko.

Incorrect word order — the verb with -ko fronts to the start of the clause.

✅ En tiedä, tuleeko hän.

I don't know whether he's coming.

❌ En tiedä, missäkö hän asuu.

Incorrect — a wh-word is already interrogative; adding -ko is redundant.

✅ En tiedä, missä hän asuu.

I don't know where he lives.

❌ Kysyin, meneeko hän kotiin.

Incorrect harmony — mennä is a front-vowel verb, so the clitic is -kö.

✅ Kysyin, meneekö hän kotiin.

I asked whether he was going home.

Key Takeaways

Embedded yes/no questions front the verb and add -ko/-kö; there is no word for "whether."
Embedded wh-questions keep the question word and use plain statement order: missä hän asuu.
The conditional -isi- softens an embedded question: tulisiko hän.
Never use jos for "whether" — jos is the conditional "if" of conditional sentences.
Mind harmony on the clitic (tuleeko / meneekö) and place it on the element genuinely in doubt.

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