Question

what is the difference between have to and must?

Answer 1

Listo, aquí puedes encontrar la diferencia de uso entre cada uno

Answer 2

conIt must refer to an obligation between two people, or an obligation you feel.

And I have to refer to an external obligation ... the rules, the law, something you have to do, period. Usually in my classes explain that it has to do if there is something that is not.