Can reflection and refraction occur at the same time?If the answer is yes then how?

I think you mean can reflection and refraction occur at
the same time. If this  is your question, the answser is yes. You can see this if you
use a laser light and shine it at the surface of a container of water. As you vary the
angle at which you shine the light on the water you should see some light reflecting off
at the same angle as you are using. (law of reflection).  Some of the light will also
enter the water and be bent (refracted) as it changes speed.  The water is acting both
as an imperfect mirror as well as an air/liquid interface.