*** used to politely ask somebody to move so that you can get past them

*** used to say that you are sorry for interrupting somebody

*** used to politely tell somebody that you are going to leave or talk to somebody else

*** used for showing you are sorry because your body has made a rude noise or doing something wrong

*** used when you did not hear what somebody said and you want them to repeat it

said before one disagrees with someone in order to not be rude or offensive