Finnish has a whole verb mood dedicated to the word "probably." The potential mood, marked by -ne-, turns a plain statement into a supposition: tulee ("comes") becomes tullee ("probably comes"), on ("is") becomes lienee ("presumably is"). It is the grammar of the educated guess. But before you drill it, know this: the potential is one of the rarest things in spoken Finnish. Outside news writing and formal prose, Finns express "probably" with an adverb — varmaan, kai, luultavasti — and the plain present tense. This page explains what the mood means and where it belongs; the mechanics of building it are on the formation page.
What it means
The potential expresses the speaker's judgement that something is probable but not certain — "may well," "is likely to," "presumably," "probably." It sits between plain assertion (on = "is," a fact) and the conditional (olisi = "would be," a hypothesis):
Se lienee totta.
That's probably true.
Asia lienee jo selvä kaikille.
The matter is presumably clear to everyone by now.
Hän tullee huomenna, ellei sada.
He'll probably come tomorrow, unless it rains.
In each case the speaker is not asserting a fact and not spinning a hypothesis — they are estimating a likelihood. English does the same job with adverbs ("probably," "presumably") or modal verbs ("may well," "should"); Finnish can also do it with an inflectional ending built right into the verb.
The register: newspaper Finnish
The natural home of the potential is (journalistic / formal / literary) writing. Reporters reach for it to mark information as expected-but-unconfirmed — the grammatical equivalent of "is set to" or "is expected to":
Hallitus antanee esityksensä eduskunnalle ensi viikolla.
The government is expected to submit its proposal to Parliament next week.
Korot nousevat, ja lainanotto hidastunee.
Interest rates are rising, and borrowing will presumably slow down.
Ottelu ratkennee vasta jatkoajalla.
The match will probably only be decided in extra time.
Read a Finnish newspaper and you will meet lienee, tullee, antanee, nähtäneen constantly; sit in a Finnish kitchen and you may go weeks without hearing one. This split — ubiquitous in print, near-absent in speech — is the single most important fact about the mood. See the journalistic register page for the wider pattern.
What speech uses instead
In conversation, Finns say "probably" with an adverb plus the ordinary present tense. Learn these — they are what you will actually say and hear:
Hän tulee varmaan huomenna.
He'll probably come tomorrow. (everyday equivalent of hän tullee)
Se on kai totta.
It's probably true. (everyday equivalent of se lienee totta)
Ne on varmaan jo lähteneet.
They've probably already left. (colloquial, with adverb + present)
So the honest learner strategy is: recognise the potential when reading, but produce "probably" with varmaan / kai / luultavasti + present. Over-producing tullee and nähnee in speech marks you as someone who learned Finnish from a grammar table.
The one survivor: lienee
There is a single exception to all of this. lienee, the potential of olla ("to be"), is genuinely alive in ordinary Finnish. Because it is suppletive — a special stem lie- rather than a predictable ollee — it feels like its own word, and it survives where the rest of the mood has died. You will hear it in fixed, vague expressions:
Se lienee paras ratkaisu.
That's probably the best solution.
Mikä lienee syy — kukaan ei tiedä.
Whatever the reason may be — nobody knows.
Hän tuli jostain, mistä lie.
He came from somewhere, who knows where. (colloquial, shortened lie)
That last one shows a colloquial quirk: in vague mistä lie / kuka lie / mikä lie expressions ("goodness knows where / who / what"), even casual speakers keep a worn-down lie. The full paradigm of lienen, lienet, lienee… is set out under olla.
Not the conditional
Keep the potential clearly apart from the conditional. Both step back from plain fact, but in opposite directions:
| Mood | Marker | Form of olla | Meaning |
|---|---|---|---|
| Indicative | — | on | is (fact) |
| Potential | -ne- | lienee | probably is (a guess) |
| Conditional | -isi- | olisi | would be (a hypothesis) |
Lienee totta means "it's probably true" (I'm estimating it likely). Olisi totta means "it would be true" (if some condition held). Confusing -ne- with -isi- reverses probability into hypothesis — a real meaning error, not a stylistic slip.
Common Mistakes
❌ Minä tullen huomenna.
Odd — the potential is for guessing about others, not stating your own plan. Say Tulen huomenna ('I'm coming') or Tulen kai huomenna ('I'll probably come').
✅ Tulen varmaan huomenna.
I'll probably come tomorrow.
❌ Hän tullee, jos hänellä olisi aikaa.
Mood clash — this is a hypothesis, so use the conditional tulisi, not the probability potential tullee.
✅ Hän tulisi, jos hänellä olisi aikaa.
He'd come if he had time.
❌ Kahvila ollee auki.
Wrong stem for 'to be' — olla is suppletive in the potential: it's lienee, never *ollee.
✅ Kahvila lienee auki.
The café is probably open.
❌ Se lienee totta, luulen.
Doubly hedged and heavy for speech — in conversation just say Se on kai totta.
✅ Se on kai totta.
It's probably true.
Key Takeaways
- The potential mood (-ne-) means "probably / presumably / may well" — an estimate of likelihood, between fact and hypothesis.
- It is (journalistic / formal / literary) and almost always third person; everyday speech uses varmaan / kai / luultavasti + present instead.
- lienee (the potential of olla) is the one form still alive in ordinary Finnish, especially in vague mikä lie / kuka lie expressions.
- Don't confuse it with the conditional: -ne- = "probably," -isi- = "would."
- Aim to recognise the potential when reading; produce "probably" with an adverb.
Now practice Finnish
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Start learning Finnish→Related Topics
- Forming the Potential: lienee, tullee, nähneeC1 — How to build the Finnish potential: add -ne- to the stem, watch it assimilate (tulla→tullee, nousta→noussee), and learn the suppletive lienee.
- The Conditional -isi-: 'would'A2 — Meet the Finnish conditional mood — the -isi- marker that packs English 'would' inside the verb (puhuisin, tulisi, olisi) for hypotheticals, wishes and politeness.
- olla ('to be')A1 — The full paradigm of olla, the most important verb in Finnish: copula, existential, the possessive minulla on, and the auxiliary that builds every perfect tense.
- Journalistic StyleC1 — News Finnish is compressed but readable — it attributes statements with the referatiivi participle (sanoi hallituksen päättäneen) instead of että, reports with agentless passives (kerrotaan), replaces relative clauses with participial premodifiers (eilen julkaistu raportti), and writes headlines with the verb stripped out.