I have some doubts about expressions I normally use in my native language but that probably don?t exist in english at all. I would like to find out a way in english for expressing respect when you approach a third person that, let?s say, is “important”(take as an example this situation: you sit together with a Professor and discuss about an issue, and let?s assume you disagree with him about some points)
Which are the forms to express disagreement “kindly”, retaining respect to a third person?
In italian, I would use the form “If I can allow myself to say it, I think that …” or “If I allow/permit myself, I make you notice, you are wrong on this point”.
Thank you in advance for any help!