'I beg your pardon' means 'I am sorry'. 'I beg yours' mean you are asking for something to someone. That something may be a particular thing or you are asking for someone to say sorry to you. Hope that helps.. Thank you.

“I beg your pardon” = I beg your forgiveness, but often used to mean "Can you say that again, I didn't catch what you said. “I beg yours” - same, but infomral. Pardon me. = the same, Usually "Can you say that again. pardon? = the same. . All these can be used for more. Actually asking for forgiveness after something, as well as just getting them to say somethign again. . It is also possible to use it more agressively to suggest that someone has said something inappropriate. As if you must have misheard them because no one would say what they said, or they should not have said it.

It means to forgive someone for smth (said or done). It’s more polite one For example Pardon my French:) Pardon me interrupting Pardon the intrusion Pardon me Pardon? used kinda instead of sorry. And it has another meaning in law language.