Hello, everyone! Earlier we had another lesson related to the case system with a focus on location. This week, we are going to learn what cases are more in depth.
Cases concern and change nouns, not verbs. Glossary of Linguistics Terms defines a case as âa grammatical category determined by the syntactic or semantic function of a noun or pronoun.â But that just complicated the matters. So in laymanâs terms, we can say that a case changes or inflects (changes) a noun or pronoun because of the nounâs function or place in a sentence. If none of the languages you speak has cases and it is your first encounter with such a concept, that might sound confusing, but donât worry! Examples exist for a reason.
So letâs take the word âevâ (house).
If we use this as a subject like in the sentence âThe house is big.â, we stick to the form we see in the dictionary and hear being said as an individual word. It is the version that exists in the minds of native speakers without an assigned function. And a sentence where this form is used would have the word as a noun as in âEv çökĂŒyor.â (The house is collapsing.)
However if the same word were used as an object like in âIâm buying the house.â, the word âevâ changes form and turns into âeviâ as the sentence âEvi satın alıyorum.â shows.
So now that we know what a case is, we can talk about cases in Turkish. In Turkish, we have five cases (some books may say more but thatâs what every native speaker learns at school) and only nouns are inflected by the cases (in contrast to other languages which inflect adjectives and determines as well e.g. German, Slavic languages, Armenian, Greek etc.)
5 Turkish cases are as follows:
Nominative (no suffix - the noun form)
Accusative (-i, - ı, - u, - ĂŒ, - yi, -yı,  yu, -yĂŒ suffixes - the direct object form)
Dative (-a, - e, - ya, - ye suffixes - the indirect object form)
Locative (-de, -da, -te, -ta - the location and time form)
Ablative (-den, -dan, -ten, -tan - the departure or source form)
Today we will be learning the ones in bold.
THE NOMINATIVE CASE (İSMİN YALIN HALİ)
You already know one of these cases as it is the nominative or as we call in Turkish âismin yalın haliâ (the plain version of the noun). It is the uninflected version of the noun, and every word you learn is in this case. Examples are as follows: kapı (door), portakal (orange), sevgi (love), uyku (sleep) etc.
The nominative is used when the noun is a subject. Ăocuk kapıyı açıyor.  (The child is opening the door.)
When it is used as a nominal predicate.This sounds different but it just means, instead of a verb a noun is used because Turkish doesnât use the verb âto beâ. Onun kızı öÄretmen.  (Her/his daughter is a teacher.)
When the object of the sentence is indefinite. (In English, to serve the same purpose âsomeâ or âaâ is used.) Bana kitap veriyor. (She/he is giving me a/some book.) If we used a case here, it would mean we are talking about a specific book, not a random one.
Before some postpositions gibi (like), için(for), ile (with), kadar (as⊠as) ev gibi (like a house), ev için (for the house), ev ile (with the house), ev kadar (as much as the house)      However I specifically recommend that you donât try to memorize these postpositions as long as the language you speak doesnât use a different case for them, they should appear pretty natural in their nominative form for speakers of languages without cases.
THE LOCATIVE CASE (İSMİN BULUNMA HALİ)
You know this case and that it is used to indicate location from Lesson 5 as well. If you donât remember or want to check it you can click the link.The name of this case makes sense both in English and Turkish,  because its function is already specified in the name. Locative is all about locations, in Turkish we call it âthe state of being found/present of the nounâ (which sounds just super duper weird in English)
This case expresses location in time and space. And is formed by adding â-deâ, â-daâ, â-teâ, â-taâ to the noun in accordance with the vowel harmony and âconsonant hardeningâ ( if a word ends in f, s, t, k, ç, Ć, h, p instead of â-deâ, - âdaâ used their t counterparts.) How it conforms to these rules is explained in Lesson 5.
Koltukta - on the couch/sofa
Aynı Ćehirde yaĆıyoruz. (We live in the same city.)
Ćehir - the city Ćehirde - in the city
Bu gĂŒnlerde her Ćey çok pahalı. (Everything is too expensive these days.)
However we still use the locative because we are talking about the location in time. If we used it in the nominative it would be a subject like in the sentence âThese days are hot.â
Also some verbs require the locative case but this isnât an arbitrary requirement, they require the locative because these verbs carry meanings related to location or time.
These are oturmak (to sit), durmak (stop),yaĆamak (to live), bulunmak (to be found/present), kalmak (to stay)
İstanbul'da yaĆıyorum. (I live in Istanbul.)
Koltukta oturuyor. (She/he sits on the sofa.)
ArkadaĆında kalıyor. [She/he is staying at her/his friendâs (place).]
Congratulations, you just learned two cases! It is a good subject for you to practice both the cases and the vowel harmony because cases make heavy use of vowel harmony. Donât hesitate to ask us any questions you have, and have a nice day!