Yes, it should be pre-qualify.
Pre construction - two words not hyphenated.
no
Yes, "pre-school" is a hyphenated word.
No it is not, I see it both ways, pre-med or pre-medical and premed or premedical.
Yes it should be hyphenated.
It should be hyphenated. Pre-manufacture.
Pre-polishing is likely a hyphenated word.
Yes, "pre-surgical" is hyphenated. The hyphen connects the prefix "pre" with the word "surgical," indicating that it refers to something occurring before surgery. This hyphenation helps clarify that the term describes a specific context related to surgery.
Canada
It is not one nor two words. It is hyphenated, just as it is written in the question.
The terms pre-register and pre-registration are still used with hyphens, mainly for clarity. But most dictionaries now list the words without hyphens, as preregister and preregistration.
To qualify for public money, a candidate has to agree to limit the amount he or she will spend on a campaign.