The term "upper class" typically does not require a hyphen when used as a noun or adjective in most contexts, such as "the upper class" or "upper class citizens." However, it can be hyphenated as "upper-class" when used as a compound adjective directly before a noun, for example, "upper-class families." Always consider the context to determine if hyphenation is necessary.
No, the word "middle class" is not hyphenated. It is used as a compound noun to refer to a socio-economic group between the upper and lower classes.
In some rare cases, writers have used it hyphenated as a noun, middle-class, but this is considered non-standard.While it should properly be hyphenated as an adjective (middle-class values), this is not always done.
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.
"Field" is not hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
Yes it should be hyphenated.
No it shouldn't be hyphenated.