Can you please check it and tell me all the mistakes?

senin kardeşinim-I am your brother

onun kardeşiyim-I am his/her brother

sizin kardeşinizim-I am your (plural) brother

onların kardeşiyim-I am their brother

benim kardeşimsin-You are my brother

onun kardeşisin-You are his/her brother

bizim kardeşimizsin-You are our brother

onların kardeşisin-You are their brother

O benim kardeşim-He is my brother

O onun kardeşi-He is his/her brother

O bizim kardeşimiz-He is our brother

O sizin kardeşiniz-He is your brother

O onların kardeşi-He is their brother

senin kardeşleriniz-We are your brothers

onun kardeşiyiz-We are his/her brothers

sizin kardeşleriniziz-We are your (plural) brothers

onların kardeşleriyiz-We are their brothers

benim kardeşlerimsiniz-You (plural) are my brothers

onun kardeşlerisiniz-You (plural) are his/her brothers

onların kardeşlerisiniz-You (plural) are their brothers

Onlar benim kardeşlerim-They are my brothers

Onlar senin kardeşlerin-They are your brothers

Onlar onun kardeşleri-They are his/her brothers

Onlar bizim kardeşlerimiz-They are our brothers

Onlar sizin kardeşleriniz-They are your brothers

Onlar onların kardeşleri-They are their brothers

There´s no mistake! Tebrikler

Ben senin kardeşinim-I am your brother

The word "kardeş" on its own has no gender in Turkish. In your Turkish sentence above, it is not clear whether you mean a "brother" or a "sister.

"Ben senin erkek kardeşinim" or " Ben senin kız kardeşinim" would have been clearer.

Notice that in both sentences, the implication is that you are the younger of the pair, because older brothers or sisters have special names in Turkish.

Ağabey (older brother)

Abla (older sister)

while we are at it,

üvey ağabey (older step brother)

üvey abla (older step sister)

üvey kardeş (younger step brother or sister)

Ben senin kardeşinim-I am your brother

The word "kardeş" on its own has no gender in Turkish. In your Turkish sentence above, it is not clear whether you mean a "brother" or a "sister.

"Ben senin erkek kardeşinim" or " Ben senin kız kardeşinim" would have been clearer.

Notice that in both sentences, the implication is that you are the younger of the pair, because older brothers or sisters have special names in Turkish.

Ağabey (older brother)

Abla (older sister)

while we are at it,

üvey ağabey (older step brother)

üvey abla (older step sister)

üvey kardeş (younger step brother or sister)

Thanks, Turkish2412, for practicing this in public. Many learners mix possessive suffixes with personal endings and your examples show how they occur side by side.

There is something I would like to ask. It is about the plural marking.

Is it necessary to add LAR to the noun when the pronoun already shows the brothers are many? Could it be Biz sizin kardeşiniziz?

Merhaba Abla,

It´s not necessary, it´s optional. You can also say "Biz senin kardeşiniz"

okay thank you all

Durun siz kardeşsiniz. Stop you are syblings.

The very tragic moment of some old Turkish movies. Someone appears and shouts this at two lovers who are about to marry.

That is also the moment I shit myself laughing.