Question

your brother hears the radio
negativo, interrogativo
pasado aff, neg, int
presente perfecto aff, int, neg

Answer 1

Saludos. 

Negativo: Your brother does not hear the radio.
Interrogativo:  Does your brother hear the radio?

PASADO

Afirmativo: Your brother heard the radio.
Negativo: Your brother did not hear the radio.
Interrogativo:  Did your brother hear the radio? 

PRESENTE PERFECTO

Afirmativo: Your brother have heard the radio.
Negativo:  Your brother have not heard the radio. 
Interrogativo: Have your brother ever heard the radio?