Thank you Mr.Micawber and Seyfihoca for your help. I have another question. Is there any difference in meaning apart from that in usage? Example, He did very well on the exam except (for) a few mistakes. Does "except for" has the meaning of "only", or "just"? Example: Everyone except (for) David is going to the party. Does "except" mean "David is exceptional"? Thank you for your
Well, for one thing, you have hit upon an example for which only 'except for' is possible:
'He did very well on the exam except for a few mistakes.' The 'for' seems to be required because 'mistakes' requires a different verb: not 'do' but 'make'-- 'He did very well on the exam except for (making) a few mistakes.' Having said that, 'except for' means 'not including', not 'just/on