Learn Turkish: Dışarı çıkıyoruz. Köpeğe tasma takar mısın? - We are going out. Will you put a leash on the dog?

In Turkish, asking questions in the aorist (the "wide" tense) is the standard way to make a polite request. While takacak mısın? just asks about a future plan ("Are you going to put a leash on it?"), takar mısın? is a polite request meaning "Will you / Would you please put a leash on it?".

Why does köpek (dog) become köpeğe here?

The verb takmak (to attach / put on) needs the dative case (the "to" or "for" direction) to show where you are attaching the leash. When we add the dative suffix -e to köpek, the hard final k softens to a ğ, making it köpeğe.

Why is tasma (leash) not marked with a specific object suffix like tasmayı?

Because we are asking someone to put a leash on the dog, not the specific leash. When a direct object is general or indefinite like this, it stays in its plain form and usually sits right next to the verb.

Since we are going out, why don't we add the direction suffix to make it dışarıya çıkıyoruz?