begging (someone's) pardon

Translations
прошу прощения
Begging your pardon, I think there might be an error in the report.
Прошу прощения, но я думаю, что в отчете может быть ошибка.
Definitions
A polite expression used to apologize for a minor offense, to ask someone to repeat something, or to politely disagree or correct someone. It can also be used to get someone's attention or to excuse oneself in conversation.
Words
pardon

noun
помилование
beg

verb
умолять