Turkish uses special suffixes attached to the end of nouns to show their relationship to other words in a sentence.

These suffixes are known as noun cases.

Instead of using separate prepositions like “to”, “in”, or “from” as we do in English, you simply add a small ending to the Turkish word.

Understanding these cases is one of the most important steps in mastering Turkish grammar.

There are six main noun cases in Turkish.

Every case follows the rules of Turkish vowel harmony.

Let’s look at exactly how each case works and when you need to use it.

The nominative case (yalın durum)

This is the simplest noun case in Turkish.

The nominative case is the basic, dictionary form of a word.

You don’t add any suffixes to the noun.

We use this case when the noun is the subject of a sentence.

The accusative case (belirtme durumu)

The accusative case marks the specific, direct object of a verb.

It loosely translates to adding the word “the” in front of the noun in English.

You only use this case when you’re talking about a specific item, not general items.

The accusative case uses 4-way vowel harmony.

This means the suffix will be either -ı, -i, -u, or -ü depending on the last vowel of the word.

If the noun already ends in a vowel, you must add the buffer letter -y- to prevent two vowels from touching.

The dative case (yönelme durumu)

This case shows movement toward a destination or an object.

You’ll use it whenever you want to say you’re going “to” a place or giving something “to” someone.

The dative case uses 2-way vowel harmony.

This means you’ll add either -a or -e to the end of the noun.

If the noun ends in a hard vowel (a, ı, o, u), you add -a.

If the noun ends in a soft vowel (e, i, ö, ü), you add -e.

Just like the accusative case, you must insert the buffer letter -y- if the word already ends in a vowel.

The locative case (bulunma durumu)

The locative case shows location or position.

It replaces the English prepositions “in”, “on”, or “at”.

This case also uses 2-way vowel harmony, meaning you’ll add either -da or -de.

However, you must also pay attention to Turkish consonant mutation.

If the word ends in a voiceless consonant (ç, f, h, k, p, s, ş, t), the suffix changes to -ta or -te.

A common memory trick for these voiceless consonants is the phrase Fıstıkçı Şahap.

The ablative case (ayrılma durumu)

This case shows movement away from a place or a point of origin.

It translates to the English preposition “from”.

The ablative case uses 2-way vowel harmony, adding either -dan or -den to the noun.

It follows the exact same consonant mutation rules as the locative case.

If the word ends in one of the “Fıstıkçı Şahap” consonants, the suffix changes to -tan or -ten.

The genitive case (tamlama durumu)

The genitive case is used to show possession, ownership, or belonging.

It acts exactly like the apostrophe-s (‘s) or the word “of” in English.

It uses 4-way vowel harmony, so the suffix will be -ın, -in, -un, or -ün.

If the noun ends in a vowel, the buffer letter used for the genitive case is -n- (making it -nın, -nin, -nun, or -nün).