Question

Cuando se utiliza el does not y not?

Answer 1

"Do not" se usa para you, they and we.
  Ex: You do not love me / they do not want to be with us / we do not care.

"Does not" se usa para la tercera persona en singular, es decir, para she, he and it.
  Ex: She does not love me / He does not want to go out / It does not matter.