Finnish for busy people

The 5 Finnish Infinitives

Finnish is said to have 5 infinitives. However, the number of infinitives listed can differ based on the source. For example, iso suomen kielioppi only talks about three infinitives: A-infinitiivi, MA-infinitiivi and E-infinitiivi. Another example is the fifth infinitive, which could also be seen as a “diminutive” of the third infinitive. On this page, I’m going to present the 5 Finnish infinitives the way I was originally taught.

Table of Contents
  1. The First Infinitive (-a, -akseen)
  2. The Second Infinitive (-en, -essa)
  3. The Third Infinitive (-massa, -maan)
  4. The Fourth Infinitive (-minen)
  5. The Fifth Infinitive (-maisillaan)

1. The First Infinitive

The first infinitive is also called “the basic form” or “the dictionary form”. Another name it carries is the A-infinitive. It has received that name due to the fact that this infinitive always ends in an -A.

The first infinitive is what we base the Finnish verbtypes on! It’s the infinitive on which most of the rules for tenses, moods and derivatives are based. As such, it’s considered important for language learners.

The First Infinitive

Verbtype Verb Translation
Verbtype 1 sanoa to say
Verbtype 2 käydä to visit
Verbtype 3 harjoitella to practise
Verbtype 4 halata to hug
Verbtype 5 häiritä to disturb
Verbtype 6 vanheta to get older

The Long Form of the First Infinitive

Verbtype Verb Translation
Verbtype 1 sanoakseni in order for me to say
Verbtype 2 käydäkseni in order for me to visit
Verbtype 3 harjoitellakseni in order for me to practise
Verbtype 4 halatakseni in order for me to hug
Verbtype 5 häiritäkseni in order for me to disturb
Verbtype 6 vanhetakseni in order for me to get older

The long form of the first infinitive is a lot less important for language learners, but it’s still interesting to know it exists. You can read more about it on our page about the long form of the first infinitive.

2. The Second Infinitive (-en, -essa)

The second infinitive can appear in the inessive case in order to express things happening at the same time. This is used in the temporal substitute construction (= temporaalirakenne = temporaalinen lauseevastike). For example, maksaessani means “while I was paying” and odottaessanne means “while you were waiting”. There is also a passive inessive form.

It can also appear in the instructive case. In that case, it refers to the manner in which something is done. You use this form in the modal substitute construction (= modaalirakenne = modaalinen lauseenvastike). For example, puhun huutaen means “I talk in a shouting manner”, while puhun kuiskaten means “I talk with a whispery manner”.

Verb Active Inessive Passive Inessive Active Instructive
maksaa maksaessani maksettaessa maksaen
odottaa odottaessasi odotettaessa odottaen
seisoa seisoessaan seisottaessa seisoen
itkeä itkiessämme itkettäessä itkien
syödä syödessänne syötäessä syöden
tupakoida tupakoidessaan tupakoitaessa tupakoiden
jutella jutellessani juteltaessa jutellen
pestä pestessäsi pestäessä pesten
tavata tavatessaan tavattaessa tavaten
pudota pudotessamme pudottaessa pudoten
häiritä häiritessänne häirittäessä häiriten

3. The Third Infinitive (-massa, -maan)

The third infinitive is also called the mA-infinitive (mA-infinitiivi), due to the fact that you will be using the -mA- marker in it. This infinitive can occur in certain cases only. It never appears on its own in a sentence. Rather, it’s always part of a verb chain, with a main verb combined with the third infinitive of another verb.

Case Example Translation
Stem Isän maalaama talo näyttää hienolta. The house my dad painted looks great.
Missä Tapaturma sattui, kun olin maalaamassa. The accident happened when I was painting.
Mistä Tuletko suoraan maalaamasta? Are you coming straight from painting?
Mihin Aamulla menen maalaamaan aidan. In the morning, I’m going to go paint the fence.
Millä Rentoudun parhaiten maalaamalla. I relax the best while painting.
Abessive En voi olla maalaamatta! I can’t not paint!
Instructive Sinun pitää maalaaman. You have to paint. (archaic)

You can read more about the third infinitive and about third infinitive rections on our website as well. The third infinitive is also used for the agent participle (agenttipartisiippi or mA-partisiippi).

4. The Fourth Infinitive (-minen)

The fourth infinitive is controversial because linguists have argued about what can be considered as the fourth infinitive and what can’t. In its most theoretical form, the fourth infinitive is only used in “sinun on tekeminen” type sentences, which are extremely rare and archaic.

However, you can also see the fourth infinitive from a wider perspective and categorize all nounalized verbs as fourth infinitive forms. This is not how serious linguists see it, but it is how you would be taught Finnish in immigration courses in Finland. When we include nounalized verbs into the field of the fourth infinitive, its usage suddenly shoots up and you have an infinitive you should learn to use as soon as possible!

Case Maalata Example Sentence
Nominative maalaaminen Maalaaminen on väsyttävää.
Genitive maalaamisen Aloitan maalaamisen huomenna.
Partitive maalaamista Rakastan pimeässä maalaamista.
Missä maalaamisessa Tärkein asia maalaamisessa on väri.
Mistä maalaamisesta En oikein tykkää maalaamisesta.
Mihin maalaamiseen Olen kyllästynyt maalaamiseen.
Millä maalaamisella Maalaamisella voi rentoutua.
Translative maalaamiseksi Valitaan väri aidan maalaamiseksi.

The fourth infinitive is used the most when talking about hobbies. There is also a bunch of verbs with a fourth infinitive rection.

5. The Fifth Infinitive (-maisillaan)

The fifth infinitive is a rare form which has the meaning ”on the verge of doing something; just about to do something”. Its marker is mAisillA-, with a possessive suffix at the very end. Because of the -ma- at the beginning of the marker, we can also consider this infinitive to be part of the mA-infinitive. You can read more about it on the third infinitive page (point 2.9).

Those were the 5 Finnish infinitives!
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Anteeksi miten se sanotaan ”I need a pen for write” suomeksi? ”Tarvitsen kynän kirjoittamiseen”? Jos se on niin, mikä nimi on? Onko se kolmas infinitiivi? Ei ole selvä minulle missä käyttää ”minen” muoto. Kiitos paljon avusta ja sivusta!


Olet oikeassa.

[Mihin] se tarvitsee?
1. ..rakentamiseen
2. ..ajamiseen
3. ..lukemiseen

1. Onko sinulla avaimet [oveen].
–Nämä avaimet ovat oven [avaamiseen]

Toivon, että voin auttaa sinua.

Last edited 3 years ago by Rasikko
Inge (admin)

Tähän lauseeseen sopisi hyvin ensimmäinen infinitiivi: “Tarvitsen kynän kirjoittaakseni viestin” eli “I need a pen in order to write the message”. Sinun lauseesi ei kuulosta yhtä luontevalta.

Muoto kirjoittamiseen olisi toisaalta tosi hyvä, jos käytät verbiä käyttää: “Käytän kynää kirjoittamiseen” eli “I use a pen for writing”. Tämä sopii, koska käyttää-verbin rektio sallii sen.

Minulla on sivu tästä kirjoittaakseni-muodosta, mutta se on aika niukka. Kannattaa myös käydä lukemassa lisää minen-muodosta tässä.


Kiitos vastakusista!


Hello! I’m a recent Finnish student, and I’m happy because I have found your website. 🙂
I’m leaving this comment because I found a typo in the introduction of this post:

For example, iso suomen kielioppi only talks about three infinitives: A-infinitiiv, MA-infinitiivi and E-infinitiivi.”

Here ‘A-infinitiiv’ should end with ‘i’ like the others.

Thank you and have a nice day! 🙂

Inge (admin)

Ah, thank you! If you find 10 typos in total, you can get access to extra materials as a “thank you” 😉 Be on the lookout for more of these!