A quick and dirty tip on hyphenation
Chuck B. asked whether he needs a hyphen in the phrase "the previously-explained goal." It's a good question because hyphens are tricky.
You use a hyphen to create a compound adjective before a noun:
You don't use a hyphen, though, when one of the two modifiers before the noun is an adverb that ends in "-ly."
The previously explained goal
Happily soaked man
Get more tips like this in The Grammar Devotional: