S.B.
Two things come to mind. He may not be ready for potty training and ditch the diapers. With my son I trained and fought and trained. And cried and got super frustrated with the entire situation. A friend told me I should just quit potty training for a while. I thought she was crazy, what about the progress he had made?? But one day when I found myself overly upset over a pee pee accident (I didn't get upset with my son, just upset and frustrated in general), I realizes it was ridiculous and just went back to diapers for a few months. If HE asked to use the potty we went and he was praised, but I didn't bring it up at all for about two months. When we went back to it, I was calmer and he was more "mature". The second time went MUCH easier. He trained rather quickly and it was a much more positive experience.
With my kids, I had to completely ditch the diapers. We removed them from the house. The kids helped me load up the diapers so I could donate them. If my children were in a diaper or a pull up, it was "permission" to pee and trying to get them on the toilet was a futile effort. If diapers were in the house, they would simply ask for a diaper or pull up. Take away the diapers and they had no other options.