Please explain turkish grammar of these sentences:
1. Ben ve Aylin çok çalışkan, düzenli ve dikkatliyiz.
Why not "çalışkanız, düzenliyiz ve dikkatliyiz"? Does it mean that there has to be only one "-iz" in one senetence, and it has to be joined to last adjective?
2. Ben daha sessiz ve sakinim.
Another example, the same question. "Sessiz" doesn't have "-im" because 2 times it could be too much. Do I think right?