No, "do-over" is hyphenated. It is a compound noun that refers to an opportunity to redo something, often used in informal contexts such as games or sports. The hyphen helps clarify that the two words function together as a single concept.
It is not hyphenated.
No it's not hyphenated.
Motorcycle is not hyphenated
words are only hyphenated when they have a separate meaning when separated than they do when hyphenated
No, "hardworking" is not hyphenated.
Yes it should be hyphenated.
It can be. Some words can be seen both hyphenated and non-hyphenated.
No. Well above is not hyphenated.
The word desperate hyphenated
peace of mind is not hyphenated.
"Field" is not hyphenated.
Yes it should be hyphenated.