I've never run a marathon, and not likely to be possible for me, because I have a disease is asthma. If this is disorder will not be able to make a very tired.
I've never run a marathon and not likely to be possible for me. Because I was persistent asthma. If this disease is not an activity that can be very tiring.
I've never run a marathon, and it wouldn't be possible for me. Because I have the disease's asthma. If this disease will not be able to do activities that tired.