I knew when my dad was dying
Oh no I am very sorry about your loss. How could you tell your dad was dying?
I heard him choking and I looked through the window and saw that he was in pain.
If you think that your dad is dying then you should try and visit them when you can. You're expected to try and visit your parents if they are passing away.
That is probably a good idea. I would hate to not have the chance to see him again.
Usually children spend time with their parents when they are dying. I guess you did the best you could for him so you do need to find out how you can move on.