Vamos com calma: ninguém aqui quer brigar.

Why every word is where it is

1. 1
   Vamos com calma = "let's take it easy": a fixed way to slow down a heated exchange.
2. 2
   ninguém before the verb needs no não; the verb is singular. Negation: não, nada, ninguém, nunca, nem →
3. 3
   brigar = "to fight, to argue" (in words or physically).