Turkish Case Endings and Verbal Nouns: How the Predicate Decides the Ending

For a reader in a hurry: this is a long article, and I'd genuinely recommend reading the whole thing. But if you only have a minute, here is the core idea. Most learners treat gitmeyi, gitmeye, and gitmekten as separate grammar to memorize, four unrelated endings tied to four unrelated verbs. They are not separate. They are the exact same case system already familiar from ordinary nouns, seni, derse, bundan, now applied to an action instead of a noun. The predicate, almost always the main verb, decides which case a complement takes. Sevmek wants the accusative. Başlamak wants the dative. Hoşlanmak wants the ablative. Once gitmek turns into a noun-like form, it steps into that same system and picks up whatever case the verb after it happens to require. Nothing new is being learned here. An old rule is simply being applied to a new kind of word.

Turkish Cases and Why the Predicate Usually Chooses Between Them

What a case ending actually does

Every language needs a way to show what role a noun plays in a sentence. English mostly uses word order and prepositions: I saw the dog, I gave it to the dog, I came from the house. Turkish uses suffixes instead, attached directly to the noun, following the same vowel harmony and suffix logic that shapes the whole language. The technical name for this suffix system is durum eki, case suffix, or in the older grammatical tradition, ismin hâlleri, the states of the noun.

Turkish grammar books do not all count the cases in exactly the same way. Many descriptions list five or six forms, including the unmarked nominative and the genitive.

Some teaching traditions group or count them differently, and the classification remains a genuine point of discussion in Turkology rather than a settled fact. The classification matters less than the central pattern that follows: case suffixes show the relationship of a noun-like expression to the rest of the sentence.

Case (English)	Case (Turkish)	Typical suffix	Question it answers	Example
Nominative	yalın hâl	none	who, what (as subject)	ev (house)
Accusative	belirtme durumu	-(y)I	whom, what (as a specific direct object)	evi (the house, as object)
Dative	yönelme durumu	-(y)A	to where, to whom	eve (to the house)
Locative	bulunma durumu	-DA	where, in what	evde (in the house)
Ablative	ayrılma durumu	-DAn	from where, from what	evden (from the house)
Genitive	ilgi durumu	-(n)In	whose	evin (the house's)

The capital letters in the suffix column are standard notation in Turkish linguistics. They mark a slot that changes shape depending on vowel harmony and surrounding consonants: -DA surfaces as -da, -de, -ta, or -te; -(y)I surfaces as -ı, -i, -u, or -ü, with a buffer consonant -y- after a vowel.

The predicate usually determines the case

A noun does not carry a particular case simply because of its own meaning. When it functions as a complement, its case is often selected by the governing verb or by another predicate. Turkish linguists describe this relationship through the concept of istem, valency, sometimes discussed under case government.

Take three sentences with three different complements:

Sana güveniyorum. I trust you.

Bundan korkuyorum. I am afraid of this.

Ona inanıyorum. I believe him.

Three different case suffixes appear, and the reason has mostly to do with the verb's requirement rather than the complement's own meaning.

Güvenmek takes the dative.

Korkmak takes the ablative.

İnanmak takes the dative as well.

Main verb	English gloss	Common complement pattern
sevmek	to love	definite or specific direct object: accusative
görmek	to see	definite or specific direct object: accusative
başlamak	to begin	dative complement
güvenmek	to trust	dative complement
inanmak	to believe	dative complement
hoşlanmak	to enjoy	ablative complement
korkmak	to fear	ablative complement
nefret etmek	to hate	ablative complement

Direct objects add one complication. Turkish direct objects do not always carry a visible case ending. An indefinite or generic object often stays bare:

Kitap okuyorum. I am reading (a book, reading in general).

Kedi gördüm. I saw a cat.

With a definite or specific direct object, the accusative appears:

Kitabı okuyorum. I am reading the book.

Kediyi gördüm. I saw the cat.

So the case ending is not only about which verb is used. It also depends on whether the object is a specific, identifiable thing or a general one, a distinction Göksel and Kerslake's reference grammar treats in detail under definiteness and specificity. The examples ahead work with definite, specific complements, which is where the accusative reliably appears.

Not every case ending in a Turkish sentence traces back to a verb's requirement, either.

Some mark free information the sentence happens to include:

Parkta kitap okudum. I read a book in the park.

The locative parkta here is not something okumak demands. It is a free adjunct, place information the speaker chose to add. This distinction, between complements a verb requires and adjuncts a sentence simply carries, matters for the rest of this piece.

Some verbs take one complement. Some take two at once.

Many Turkish verbs need only one case-marked complement, as in the table above.

Other verbs take two complements at once, each with its own case. The clearest case is a verb of giving, where one thing moves and one person receives it.

Kitabı ona verdim. I gave the book to him.

Parayı bankaya verdim. I gave the money to the bank.

Gerçeği ona söyledim. I told him the truth.

Vermek and söylemek can take an accusative complement, the thing given or said, and a dative complement, the receiver, in the same sentence:

Kitabı ona verdim. I gave the book to him.

Either complement can also stand alone, depending on what the speaker wants to say:

Kitabı verdim. I gave the book. (to someone unspecified or already clear from context)

Ona verdim. I gave it to him. (the thing given already clear from context)

When both appear together, they take different cases because they fill different roles, the thing transferred and the person receiving it, not because the verb forces both to be present.

A note on case and meaning

A small number of Turkish verbs work with more than one case across related senses, and the case can track a shift in meaning. Düşmek is a clear example:

Sandalyeden düştü. It fell from the chair.

Yere düştü. It fell to the ground.

Here the ablative marks the source of the fall and the dative marks its destination, two different semantic roles within the same event rather than two competing options for the same role. A learner who only memorizes "düşmek takes the ablative" will describe where something fell from correctly and struggle to say where it landed.

The lesson from these patterns together: a verb can regularly select one case for a given complement. A verb can require two cases at once, one per role. A verb's single case can also shift what it marks within one event, as with düşmek. In every version, the case answers to the governing verb far more than to the noun alone.

The comparison that changes everything

Now watch what happens when the complement itself is not a noun but an action.

Kahveyi seviyorum.

Yürümeyi seviyorum.

Nothing about walking requires -yi. The ending appears because sevmek requires that complement.

The first sentence loves a drink. The second loves an action. Both endings are identical, and both are there for the same reason: sevmek always takes its complement in the accusative. Something has clearly happened to yürümek here, it has started behaving like a noun. What that something is, and why it lets a verb carry a case ending at all, is the next piece of the puzzle.

What Is a Fiilimsi?

Turkish grammar has a name for words that grow out of a verb but behave, at least partly, like something else: a noun, an adjective, or an adverb. The umbrella term is fiilimsi, verbal derivative or non-finite verb form. Traditional grammar divides it into three families.

İsim-fiil turns the verb into the name of an action, so it can act like a noun (yürümek, gitme), and this is exactly what happened to yürümek a moment ago.

Sıfat-fiil, the participle, turns the verb into a description of a noun (gelen adam, the man who is coming).

Zarf-fiil, the converb, turns the verb into a description of how or when something happens (gülerek konuştu, he spoke while laughing).

This piece is entirely about the first family, isim-fiil, since that is the one that interacts directly with case endings.

The main suffixes that build an isim-fiil are -mA, -mAk, and -(y)Iş. They are not interchangeable.

-mAk names the action in general, close to an English infinitive: yürümek, to walk.

-mA names one specific instance of it, closer to a gerund, and pairs more easily with possessive suffixes: yürümem, my walking.

-(y)Iş usually points to the manner or style of the action, and some -(y)Iş forms have simply become ordinary words with their own dictionary meaning, like gidiş (a departure) or biliş (cognition).

Course materials often treat -mA and -mAk as two versions of the same ending. They are not. This piece works mainly with these two, since they carry the examples ahead.

An isim-fiil has not fully become an ordinary noun. It occupies a noun-like position and can carry case suffixes while keeping properties a genuine noun never has. Unlike an ordinary lexical noun, a nominalized verb can preserve the argument structure of its verb base:

Kitap okumayı seviyorum. I love reading books.

Here okumayı behaves like a noun in relation to sevmek, while okumak still keeps kitap as the thing being read. Okumayı is the object of loving. Kitap is the object of reading, sitting inside the verbal noun itself.

Negation shows the same layering.

Erken kalkmamayı tercih ediyorum breaks down as kalk- + ma- + ma + -yı: the verb root kalk-, a first -ma- marking negation, a second -ma nominalizing the action, and -yı the accusative. The two -ma syllables look identical and do different jobs. Reading the form layer by layer makes the two sequences easier to tell apart.

Why Verbal Nouns Take the Same Case Endings

Case endings attach to noun-like positions in a sentence. An isim-fiil occupies a noun-like position. So an isim-fiil takes case endings the way an ordinary noun would, in a relationship governed by the same verb that would have governed an ordinary noun sitting in that spot. The underlying logic of case does not begin again from zero. What changes is the kind of expression filling the complement position.

The breakdown of yürümeyi makes the mechanism visible:

yürü- + me + -yi → yürümeyi

Yürü- is the verb root. -me nominalizes it. -yi is the ordinary accusative suffix, arriving because sevmek takes an accusative complement, exactly as it did with kahveyi.

Learners often think they are memorizing four unrelated verb patterns, -mak istemek, -mayı sevmek, -maya başlamak, -maktan hoşlanmak. In reality, they are seeing one familiar case system interacting with different kinds of nominalization.

Başlamak commonly takes its complement in the dative:

Derse başladım. I started the lesson.

Çalışmaya başladım. I started working.

çalış- + ma + -ya → çalışmaya

Hoşlanmak commonly takes its complement in the ablative:

Müzikten hoşlanıyorum. I enjoy music.

Yürümekten hoşlanıyorum. I enjoy walking.

yürü- + mek + -ten → yürümekten

Note the nominalizer here is -mek, not -me, followed by the ablative -ten, the /d/ → /t/ shift being ordinary consonant devoicing after k.

The connection becomes clearest when the first action stays the same:

Gitmeyi seviyorum. Gitmekten hoşlanıyorum.

The first verb, gitmek, is identical in both sentences. Its own meaning has not shifted. What changed is the verb that follows, and with it, the case. Sevmek takes the accusative. Hoşlanmak takes the ablative. The ending on the nominalized action tracks whichever verb comes after it, the same relationship that governs seni against bundan in ordinary sentences with ordinary nouns.

Main verb	Common complement pattern	Ordinary noun example	Verbal noun example	Segmentation
sevmek	accusative	Kahveyi seviyorum.	Yürümeyi seviyorum.	yürü- + me + -yi
başlamak	dative	Derse başladım.	Çalışmaya başladım.	çalış- + ma + -ya
hoşlanmak	ablative	Müzikten hoşlanıyorum.	Yürümekten hoşlanıyorum.	yürü- + mek + -ten
korkmak	ablative	Köpekten korkuyorum.	Yalnız kalmaktan korkuyorum.	yalnız kal- + mak + -tan

Course materials often present -meyi, -meye, and -mekten as single, unbreakable endings, which hides the mechanism that makes the system learnable rather than memorizable.

Combined form	Nominalizer	Case suffix	What typically selects the case
-meyi / -mayı	-me / -ma	-(y)I accusative	the main verb, e.g. sevmek
-meye / -maya	-me / -ma	-(y)A dative	the main verb, e.g. başlamak
-mekten / -maktan	-mek / -mak	-DAn ablative	the main verb, e.g. hoşlanmak

Splitting these apart is genuinely useful, but it should not be overstated. -mak istemek, -mayı sevmek, -maya başlamak, and -maktan hoşlanmak are not four instances of one identical operation. Two separate decisions are involved: which nominalizer the verb accepts, -mA or -mAk, and which case, if any, follows it.

These constructions share one central principle: once an action occupies a noun-like complement position, its case reflects the requirements of the verb governing it, the same way an ordinary noun's case would. Nominalizer choice and case choice remain two related but distinct parts of the system.

A 2022 study of four widely used Turkish teaching sets, Yeni Hitit, Gazi, Yedi İklim, and İstanbul, found that case suffixes and verbal nouns were generally introduced at different stages and treated as separate topics. The authors argued that learners were not consistently shown the relationship between them. That separation can encourage learners to treat familiar case relations as a whole new collection of verbal-noun endings, rather than as the same system wearing a different kind of complement.

Quick Reference: Common Verbs by Case

Accusative -(y)I	Dative -(y)A	Ablative -DAn
sevmek (to love)	başlamak (to begin)	hoşlanmak (to enjoy)
tercih etmek (to prefer)	karar vermek (to decide)	korkmak (to fear)
özlemek (to miss)	devam etmek (to continue)	nefret etmek (to hate)
beklemek (to wait for)	alışmak (to get used to)	vazgeçmek (to give up on)
unutmak (to forget)	izin vermek (to allow)	bıkmak (to grow tired of)

This is a practical starting list, not an exhaustive one, and a few verbs shift case with meaning, as düşmek showed earlier.

The Genitive Is a Different Door

The three verbs above hand out a case as part of what the verb itself requires. The genitive works through a separate mechanism, the possessive construction, tamlama.

Bu ilacın faydası yok. This medicine has no benefit.

İlaç takes the genitive -ın, and fayda carries the matching possessive suffix -sı. Now the possessor slot is filled by a nominalized action:

Gitmenin faydası yok. There is no benefit to going.

Erken kalkmanın faydası var. There is a benefit to getting up early.

Git- + me + -nin becomes the possessor, the role bu ilacın filled a moment ago. No main verb is choosing anything in this construction. Turkish case marking comes from more than one grammatical relationship. Verb valency explains many complements, the ones covered above. Possessive constructions explain the genitive here, independently of whatever verb sits elsewhere in the sentence.

Possessor	Turkish	Case
this medicine	bu ilacın	genitive
an action, going	gitmenin	genitive
an action, getting up early	erken kalkmanın	genitive

İstemek and the Question of Who Is Doing the Action

İstemek allows different complement structures. With the same subject, it commonly takes a bare -mAk clause:

Gitmek istiyorum. I want to go.

When the embedded action has its own expressed subject, different from the one who wants it, Turkish uses a possessive -mA nominalization, and the whole clause receives the accusative:

Senin gelmeni istiyorum. I want you to come.

sen- + -in gel- + me + -n + -i: the subject of coming appears in the genitive, gelme is the nominalized verb, -n is a possessive suffix agreeing with the second person, and -i is the accusative that istemek takes for its complement here. This complement structure differs from gitmek istiyorum: the subject of the embedded action is now explicit, marked through a possessive layer rather than left unspoken.

A small pronunciation note worth keeping in mind: after a third-person possessive suffix, Turkish inserts -n- rather than -y- before a following case ending. This is the same "pronominal n" seen in onun gelmesine şaşırdım and onun gelmesini istiyorum, where -si- (possessive) is followed by -n- and then the case ending, not by -y-.

Putting It Into Practice

When building a sentence with a nominalized action, four steps cover most cases:

1. Find the verb governing the complement, usually the main verb at the end of the sentence.

2. Ask what case that verb requires. Başlamak needs the dative.

3. Nominalize the action with -mA or -mAk. Çalış- becomes çalışma.

4. Attach the required case to the nominalized action: çalışma + ya → çalışmaya başladım.

A quick check of the logic:

Complete the sentence: Ben Türkçe öğren___ başladım. (öğrenmeye, because başlamak takes the dative) Complete the sentence: Erken kalk___ nefret ediyorum. (kalkmaktan, because nefret etmek takes the ablative) Why yürümeyi seviyorum but yürümekten hoşlanıyorum? Because the verb that follows determines the case, not the action yürümek itself.

Where the Rule Reaches Its Limit

The main verb is a strong teaching compass, and like any compass, it simplifies real terrain. A careful account needs a few honest qualifications. The case selector is not always a verb: postpositions and certain predicates built on nouns or adjectives can also require a specific case from a nominalized clause, as in geldikten sonra (after coming)

Not every case ending traces back to a requirement at all, since some mark free information about place or time, as parkta okudum showed earlier. And a definite, specific complement behaves differently from an indefinite one, which is part of why kitap okuyorum and kitabı okuyorum are both correct and mean slightly different things.

The four constructions this piece has walked through, gitmek istemek, gitmeyi sevmek, gitmeye başlamak, gitmekten hoşlanmak, are not grammatically identical to one another. They become far easier to learn once a student sees that case marking on a nominalized action follows the same complement relationships already familiar from ordinary nouns, and that the ending, when there is one, tracks the requirements of whatever verb governs that position.

This article proposes a teaching framework rather than a new linguistic analysis. The linguistic pieces, nominalization, valency, case government, are well established in Turkology. The contribution here is bringing them together through a single learning model that connects ordinary noun complements with nominalized actions, in a form a learner can apply directly.

A nominalized action simply steps into a position an ordinary noun could also fill, and picks up the same case marking that position always required.

If you already understand how Turkish case works with ordinary nouns, you already understand most of what happens with verbal nouns. The complement changed. The underlying case logic stayed exactly where it was.

Vocabulary

durum eki – case suffix

ismin hâlleri – the cases of the noun

belirtme durumu – accusative case

yönelme durumu – dative case

bulunma durumu – locative case

ayrılma durumu – ablative case

ilgi durumu – genitive case

istem – valency, the roles and forms a verb requires of its complements

fiilimsi – verbal derivative, non-finite verb form

isim-fiil – verbal noun

tamlama – possessive phrase

Add Learn Turkish with Seda as a Preferred Source on Google for more entries on Turkish language, history, and culture.

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Frequently Asked Questions (FAQ)

Q: How many cases does Turkish have?

A: Many descriptions list six, including the unmarked nominative and the genitive, though counting conventions vary across grammars. What matters more than the number is the underlying pattern: case suffixes mark how a noun-like expression relates to the rest of the sentence.

Q: How do I know which case a verb requires?

A: It has to be learned verb by verb, the way English speakers learn which prepositions pair with which verbs. Once learned, the same pattern generally holds whether the complement is an ordinary noun or a nominalized action.

Q: Can one verb take two different cases?

A: Yes, in two different ways. Verbs like vermek take two case-marked complements at once, an accusative object and a dative recipient. A smaller set of verbs, like düşmek, work with different cases across related roles within the same event, source against destination.

Q: What is a fiilimsi?

A: A word built from a verb that behaves partly like something else. Turkish recognizes three types: isim-fiil (verbal noun), sıfat-fiil (participle), and zarf-fiil (converb). This article focuses on the first.

Q: Why does a verbal noun take a case ending at all?

A: Because suffixes like -mA and -mAk let it occupy a noun-like position in the sentence. Case endings attach to noun-like positions, typically selected by whichever verb governs that position, so the verbal noun takes a case ending for the same reason an ordinary noun in that spot would.

Sources

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Can, M. (2025). Türkçenin Yabancı Dil Olarak Öğretiminde İsim-Fiil Ekleri -mAk ve -mA'nın Anlatımı Üzerine Bir Öneri. Bezgek Yabancılara Türkçe Öğretimi Dergisi, 4(2), 164–185. https://dergipark.org.tr/tr/pub/bezgek/article/1686790

Gökoğlu, Y. (2021). Yabancılara Türkçe Öğretimi Ders Kitaplarında İsim-Fiil Eklerinin Öğretimi Üzerine Bir İnceleme. International Journal of Languages' Education and Teaching, 9(4), 250–262.

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Pirim, E. -mA ve -mAK: Cümlede Anlam Oluşumundaki İşlevsellikleri. RumeliDE Dil ve Edebiyat Araştırmaları Dergisi. https://dergipark.org.tr/tr/pub/rumelide/article/580452

Demirci, M., & Dinçaslan, M. F. (2016). The Use of Valence of Syrian Students Learning Turkish as a Foreign Language. Journal of Theory and Practice in Education, 12(5), 1011–1040. https://dergipark.org.tr/tr/pub/eku/article/258702

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