Learn Turkish: Beraber sohbet ediyoruz. - We are chatting together.

In Turkish, many verbs are formed by combining a noun with a helper verb like etmek (to do/make). Sohbet means "chat" or "conversation", so sohbet etmek literally means "to do a chat". When conjugating, only the helper verb changes, which is why it becomes ediyoruz.

The dictionary form of the helper verb is etmek. Why is there a "d" in ediyoruz?

This happens because of consonant softening. When a word ends in t and you add a suffix starting with a vowel (like the present continuous suffix -iyor), the t often softens into a d to make it roll off the tongue easier. So, et + -iyor + -uz becomes ediyoruz.

Where is the word for "we" (biz) in this sentence?

You don't need to say biz because the personal ending -uz on ediyoruz already tells us the subject is "we". In Turkish, subject pronouns are usually left out unless you want to add special emphasis.

Could I use birlikte instead of beraber here?