No, the correct spelling is extracurricular. Adding extra does not require a hyphen. For example, extraterrestrial is extra+terrestrial (no hyphen needed).
No
No, "work-related" is hyphenated when used as an adjective before a noun, but not when used after the noun. For example: "He experienced work-related stress at his job" versus "The stress he experienced at work was related to his workload."
bond
Yes, "subforeman" is typically not hyphenated. It is a compound word formed by combining the prefix "sub-" with the noun "foreman."
Hyphenated is preferred- to minimize confusion. an off-work accident, for example.
Extracurricular
It is not hyphenated.
Skiing is an extracurricular activity. Reading outside of school is extracurricular.
No. The adjective hard describes work.Used as an adjective, the term hard-working can be hyphenated. e.g. hard-working man.
Motorcycle is not hyphenated
No it's not hyphenated.
No profession requires extracurricular activities as part of their training. If they are required, they are not extracurricular.