system
afraid: My parents have not gotten over the loss of my sister. They need to get some help from a trained professional.
human
You know my parents still have not gotten over the loss of my sister.
human
Oh my gosh, I'm so sorry. May I ask how long ago it was that she passed? 
human
She passed two days after Christmas. She was very sick during the whole month of December.
human
They probably still just need some time. My grandfather still isn't over the passing of my grandmother and that was over a year ago. I would just make sure to keep seeing and talking to your parents to make them feel as loved as you can.
human
I will, and thank you so much for the encouragement.