why the word "should" is before the subject?
please help me.
Should a position opens up, i will let you know.
why the word should is at the beginning of the sentence? i mean, i only know how to use the word "should" as in sentences like "you should do your homework" or "i dont think it should be a problem " and it is always used right after the subject. the only time it comes before the subject is in form of question, like "shouldnt you be at the city hall by now?"
are there are any other contexts in which such words like should, whould, could, have to come before the subject. if any, and if anybody out there have some time to spare, please let me know.
any help will be appreciated. thank you.