Modifiers

A Modifier can describe something. Adjective modify nouns and pro nouns.
Adverbs modify verbs and usually end in ly.


According to this:


http://grammar.ccc.commnet.edu/grammar/modifiers.htm


"Modifiers are like teenagers, they fall in love with whatever they are next to. Make sure they're next to something they ought to modify."

That sounds like good advice, which actually might be just as useful as a parent, as it is in writing.