Merhaba

i want the rule of dir ,dýr and why it is become after deðil

and what is mean of it?

thanks

 We use it in a couple of occasions:

Formal written and spoken language:

Þirketimiz 1983 yýlýnda kurulmuþtur.  / Our company was established on 1983.

Informing facts.

Ergin öðretmendir. /  Ergin is a teacher.

Karýnca bir hayvandýr. / Ant is an animal.

Describing a scene:

Hava bulutludur.  Birden yaðmur yaðmaya baþlar. / The weather is cloudy. Suddenly it starts raining.

And negative of facts:

Ayþe öðrenci deðildir. / Ayþe is not a student.

Çiçek kýrmýzý deðildir. / The flower is not red.

And, when we want to use : must have.

Þimdiye kadar eve varmýþtýr. / She must have reached home by now.

Also, when wishing for something.

Umarým sýnavý geçmiþimdir. / I hope I have passed the exam

Hope it helps, and sorry if I forgot something.

çok teþkkürler