Jang-Joon Lee from Korea writes: I studied English for more than twenty years in school. But I still don't know the exact position of an adverb. Is there any rule regarding the position of adverbs?

There are many different adverbs. There is no particular form that identifies a word as an adverb. Some adjectives can be turned in to adverbs by adding –ly. When adverbs are used to modify a verb, ...