This is kind of a hard question and really you can have an endless list of types of suffering. One can be physical suffering like for example: a car runs over you and you are still alive, you can imagine the pain of that. Another type, can be emotional suffering, for example: You find out that the one you loved has cheated on you, so now your heart has broken into 1 million pieces. Furthermore, you can suffer if you are seeing a loved one in pain or dying. The list can go on and on.