@cjko Hurt someone in a relationship or someone in general?
for the latter case, I'd say sorry many many times immediately after the wrong doing happens,
and the next day I would ask him/her for forgiveness again
possibly the day after that
When I see your question, I'm thinking about how I would accidentally injure someone in basketball back in hs, I was really bad at it and always trying to push, that what I would do, guess was an awkward social try-hard for sure