It should be hyphenated when it's used as an adjective.
No, "year long" is not hyphenated when used as an adverbial phrase, such as "The project will last year long." However, when used as a compound adjective before a noun, it should be hyphenated, as in "a year-long project."
Yes it should be hyphenated.
Yes, "long-term" should be hyphenated when used as an adjective before a noun, such as "long-term goals." However, when used as a noun or after a verb, it is typically not hyphenated, as in "the plan is for the long term." Always consider the context to determine the correct usage.
Yes it should be hyphenated.
Yes, it should be hyphenated.
Yes it should be hyphenated.
yes check-up should be hyphenated
It should be hyphenated.
Yes it should be hyphenated.
"Field" is not hyphenated.
Yes it should be hyphenated.