We don´t use different relative suffixes for Plural Nouns. But, first, let´s see how we create plural nouns in Turkish.

We do it by two suffixes "-ler/-lar". We select one of them according to the Vowel Harmony.

• If last vowel is one of "a , ı , o, u" we add "-lar" because of vowel harmony.

• If last vowel is one of "e , i , ö , ü" then we add "-ler" because of vowel harmony.

ev: house > evler: houses

araba: car > arabalar: cars

defter: notebook > defterler: notebooks

kalem: pen/pencil > kalemler: pens/pencils

gün: day > günler: days

şarkı: song > şarkılar: songs

ders: lesson > dersler: lessons

düşünce: idea/thought > düşünceler: ideas/thoughts

şehir: city > şehirler: cities

etc...

Now, I´m going to tell you a very important clue:

Plural Suffixes always come before Relative Suffixes and Relative Suffixe MAY CHANGE ACCORDING TO THE STRUCTURE OF PLURAL SUFFIX 

benim evim: my home > benim ev + ler + im: my homes in here, relative suffix did not change.

benim arabam: my car > benim araba + lar + ım in here, relative suffix HAS CHANGED because

"arabalar" noun has ended with a consonant.

benim günüm: my day > benim gün + ler + im

As you see, we detect relative suffix according to "-ler/-lar"

senin evin: your house > senin evlerin: your houses.

bizim defterimiz: our notebook > bizim defterlerimiz: our notebooks

sizin düşünceniz: your idea/thought > sizin düşünceleriniz: your idea/thought.

thx

turkishcobra //