Nominative Plural in Finnish

In Brief

The Finnish nominative plural is the basic plural form, commonly used for a plural subject: auto → autot (“car → cars”) and kirja → kirjat (“book → books”). Its marker is -t, although the word stem may change: lapsi → lapset (“child → children”). A nominative plural subject normally takes a plural verb in standard Finnish: Lapset leikkivät (“The children are playing”).

Overview

A noun is a word for a person, place, thing, or idea, such as lapsi (“child”) or kirja (“book”). Finnish nouns have cases, meaning that their endings change according to their role in a sentence. The nominative is the basic case and usually the dictionary form. Its plural form generally ends in -t: kirjat (“books”).

You meet this A1 pattern whenever several people or things form the subject—the person or thing that does something or is described. In Kirjat ovat pöydällä (“The books are on the table”), kirjat is the plural subject. Finnish then shows number elsewhere too: the verb ovat is plural, and an adjective placed directly before a plural noun also takes a plural form, as in uudet kirjat (“new books”).

English usually makes a noun plural with -s, but Finnish does not have one plural ending for every grammatical situation. The -t form is specifically the nominative plural (and is also used in certain total-object constructions). Other cases build their plurals differently: compare talot (“houses”) with taloissa (“in the houses”). Start by mastering the clear pattern plural subject + plural verb; later sections explain important constructions that do not follow it.

How It Works

The beginner rule: add -t to the plural stem

For words whose stem does not visibly change, formation is straightforward:

Singular nominative	Nominative plural	Meaning
auto	autot	car → cars
kirja	kirjat	book → books
talo	talot	house → houses
koira	koirat	dog → dogs
opettaja	opettajat	teacher → teachers

The practical formula is:

singular noun → appropriate word stem + -t

The phrase “appropriate word stem” matters because Finnish endings can trigger familiar changes inside the word. Do not assume that every plural is made by attaching -t to the unchanged dictionary form.

Common stem changes

The nominative plural often reveals the same stem that appears in other declined forms. These are common patterns, not a complete list of Finnish noun types.

Pattern	Singular	Nominative plural	Meaning
consonant gradation	kukka	kukat	flower → flowers
consonant gradation	matto	matot	rug → rugs
-nen → -se-	nainen	naiset	woman → women
-si → -se-	lapsi	lapset	child → children
older -i stem	kieli	kielet	language → languages
-e → -ee-	huone	huoneet	room → rooms
irregular stem	mies	miehet	man → men

Consonant gradation means that consonants such as kk, pp, or tt may alternate with a weaker form when an ending is added. Thus kukka becomes kukat, not kukkat, and matto becomes matot, not mattot. Because noun types vary, learn a new noun together with at least one declined form when its stem is not obvious.

Adjectives before nouns agree

An adjective describes a noun, such as “big,” “new,” or “expensive.” When it comes before a noun, it agrees with that noun in number and case. A nominative plural noun therefore takes a nominative plural adjective.

Singular phrase	Plural phrase	Meaning
iso talo	isot talot	a big house → big houses
uusi kirja	uudet kirjat	a new book → new books
halpa auto	halvat autot	a cheap car → cheap cars
pieni lapsi	pienet lapset	a small child → small children

Both words may undergo stem changes. Adding -t only to the noun—iso talot—is not standard agreement.

Demonstratives have separate plural forms

Demonstratives are words such as “this” and “those,” used to point something out. Their nominative forms must also match the noun’s number.

Singular	Plural	Basic meaning
tämä	nämä	this → these
tuo	nuo	that → those
se	ne	it/that → they/those

Use nämä kirjat (“these books”), not tämä kirjat. In everyday Finnish, se and ne are also widely used for people, but hän and he remain the standard written personal pronouns.

A plural subject normally takes a plural verb

The subject is who or what performs the action or receives a description. In standard Finnish, a nominative plural subject normally has a plural verb. In the present tense, the third-person plural ending is -vat or -vät, chosen by vowel harmony.

Singular	Plural	English
Auto on kallis.	Autot ovat kalliita.	The car is expensive. → The cars are expensive.
Lapsi leikkii.	Lapset leikkivät.	The child is playing. → The children are playing.
Kirja kuuluu minulle.	Kirjat kuuluvat minulle.	The book belongs to me. → The books belong to me.
Tyttö tulee.	Tytöt tulevat.	The girl is coming. → The girls are coming.

The plural of on (“is”) is ovat (“are”). This highly frequent pair is worth memorizing immediately.

Predicate adjectives usually use the partitive plural

A predicate adjective describes the subject after a linking verb such as olla (“to be”): “The cars are expensive.” With an ordinary plural subject made up of countable members, Finnish commonly puts this adjective in the partitive plural, a form often used for an unbounded set or for the members of a group:

• Autot ovat kalliita. — “Cars/The cars are expensive.”
• Kirjat ovat kiinnostavia. — “The books are interesting.”
• Nämä ovat hyviä. — “These are good.”

Notice the contrast:

Position	Finnish	Explanation
before the noun	kalliit autot	adjective is nominative plural and agrees with autot
after olla	Autot ovat kalliita.	predicate adjective is normally partitive plural

Partitive plural formation is a separate topic and can be less predictable than nominative plural formation. At first, learn frequent pairs such as hyvät → hyviä, kalliit → kalliita, and uudet → uusia.

Examples in Context

Finnish	English	Note
Autot ovat kalliita.	Cars are expensive.	Plural subject, plural ovat, partitive plural predicate adjective
Kirjat ovat pöydällä.	The books are on the table.	A specific set of books is the subject
Lapset leikkivät pihalla.	The children are playing in the yard.	lapsi → lapset; plural verb
Nämä ovat hyviä.	These are good.	Plural demonstrative and partitive plural adjective
Isot koirat nukkuvat sohvalla.	The big dogs are sleeping on the sofa.	Adjective and noun are both nominative plural
Uudet opiskelijat puhuvat suomea.	The new students speak Finnish.	Plural subject and verb
Nuo talot ovat vanhoja.	Those houses are old.	nuo agrees with talot
Miehet odottavat bussia.	The men are waiting for the bus.	Irregular plural stem mies → miehet
Huoneet ovat valoisia.	The rooms are bright.	huone → huoneet
Pienet kukat kasvavat nopeasti.	The small flowers grow quickly.	Agreement plus consonant gradation in kukka → kukat
Ne avaimet kuuluvat minulle.	Those keys belong to me.	Colloquial-style demonstrative use of ne
Kaupat sulkeutuvat kuudelta.	The shops close at six.	A general plural statement

Common Mistakes

Adding -t to an unchanged stem

• Wrong: lapsit, naisent, kukkat
• Right: lapset, naiset, kukat
• Why: The plural ending attaches to the noun’s plural-compatible stem. Many common words change internally, so the dictionary form alone is not always enough.

Leaving the verb singular

• Wrong: Kirjat on pöydällä. (in standard written Finnish)
• Right: Kirjat ovat pöydällä.
• Why: A nominative plural subject normally requires the third-person plural verb. Singular verbs with plural subjects are common in casual speech, but they should not be copied into neutral formal writing.

Forgetting adjective agreement before a noun

• Wrong: iso talot
• Right: isot talot
• Why: An adjective directly modifying a nominative plural noun must also be nominative plural.

Using a nominative plural predicate adjective as the default

• Wrong for the usual beginner meaning: Autot ovat kalliit.
• Right: Autot ovat kalliita.
• Why: After olla, a quality attributed to the members of an ordinary plural group is generally expressed with a partitive plural adjective. Nominative plural predicates do occur with bounded or contrastive interpretations, but they are not the safe default.

Using nominative plural after a number

• Wrong: kaksi kirjat
• Right: kaksi kirjaa
• Why: After cardinal numbers greater than one in the nominative, Finnish normally uses a singular partitive noun: literally the pattern is kaksi kirjaa, not “two books” with a nominative plural.

Treating every English plural as Finnish -t plural

• Wrong: Pöydällä on kirjat when you mean “There are some books on the table.”
• Right: Pöydällä on kirjoja.
• Why: An existential sentence introducing an indefinite quantity commonly uses a partitive plural noun and a singular verb. The nominative plural Kirjat ovat pöydällä refers to a whole, identifiable set as the subject.

Usage Notes

Finnish has no articles corresponding exactly to English a/an and the. Consequently, kirjat can mean either “books” or “the books”; word order and context help indicate whether the set is already known. Compare Kirjat ovat pöydällä (“The books are on the table”) with Pöydällä on kirjoja (“There are books/some books on the table”). The second sentence introduces an indefinite or incomplete quantity and therefore uses the partitive plural kirjoja.

Standard written Finnish maintains plural subject–verb agreement: lapset tulevat, autot ovat. In colloquial speech, especially with a full noun subject or the pronoun ne, a third-person singular verb is extremely common: lapset tulee, ne tulee, autot on kalliita. These are normal spoken forms, not evidence that the standard rule is wrong. As a learner, use plural agreement in writing and recognize the singular pattern when listening.

English-speaking learners should also resist building Finnish plurals by translating one English word at a time. English “two children are playing” has both a plural noun and plural verb, but standard Finnish says kaksi lasta leikkii: the numeral phrase takes singular partitive lasta, and the verb is singular because the quantified group is treated as one grammatical unit in this construction.

Beyond the Basics / Advanced Use

You do not need to produce all of these contrasts at A1, but they explain forms you will encounter later.

Total sets versus indefinite amounts

The nominative plural often presents a set as complete or identifiable:

• Vieraat saapuivat. — “The guests arrived.”
• Omenat ovat korissa. — “The apples are in the basket.”

The partitive plural can present an open-ended or indefinite quantity:

• Vieraita saapui. — “Guests arrived / Some guests arrived.”
• Korissa on omenoita. — “There are apples in the basket.”

This is not simply the English difference between “the” and no article. It combines definiteness, quantity, sentence structure, and whether the group is viewed as a whole.

Nominative plural predicate adjectives

Although the beginner default is Talot ovat suuria (“The houses are big”), nominative plural predicate adjectives are possible: Talot ovat suuret. The nominative can frame the subject as a bounded whole and the property as applying comprehensively or contrastively. The exact preference depends on the noun, context, and intended viewpoint. Until that distinction becomes familiar through reading, use the partitive plural for ordinary descriptions of plural count nouns.

The same -t form can be a total object

A plural noun ending in -t is not always the subject:

• Ostan kirjat. — “I will buy the books.”
• Sulje ikkunat. — “Close the windows.”

Here kirjat and ikkunat are objects—the things affected by the action—and the -t form presents them as a complete set. You can identify their role from sentence structure and meaning. Object case choice is its own larger topic, so do not use the simple label “subject ending” as a complete definition of -t.

Other case plurals use a different system

Finnish usually places a plural marker based on i before a case ending outside the nominative plural:

Nominative plural	Another plural case	Meaning
talot	taloissa	houses → in houses
kirjat	kirjoista	books → out of/about books
lapset	lapsille	children → to/for the children

These forms can involve vowel and stem changes. Knowing talot does not by itself let you form every plural case, but it gives you the basic plural set that later declension builds on.

Practice Tips

1. Learn nouns in small form families. Record lapsi – lapset, nainen – naiset, and huone – huoneet, rather than memorizing only the dictionary form. Add an adjective phrase such as pienet lapset to practise agreement.
2. Transform complete sentences. Change Kirja on uusi into Kirjat ovat uusia. Check three places: noun, verb, and predicate adjective. Then try Tyttö tulee → Tytöt tulevat.
3. Sort plural examples by meaning. While reading, mark nominative plurals in one color (kirjat), partitive plurals in another (kirjoja), and other case plurals in a third (kirjoissa). This prevents the misleading idea that every English plural should end in Finnish -t.

Related Concepts

• Prerequisite: Nominative and Partitive Cases — introduces the basic contrast between a whole entity or set and partial or indefinite quantity.
• Next step: Plural — expands from nominative -t to plural stems in other cases and the partitive plural.
• Next step: Adjectives — develops adjective agreement across number and case.
• Next step: Demonstrative Pronouns — covers tämä/nämä, tuo/nuo, and se/ne in more cases.