When an adverb modifies a verb, there are usually 3 possible positions within the sentence or clause:
| FRONT | before subject | NOW I will read a book |
| MID | between subject + verb | I often read books. |
| END | after verb/object | I read books carefully. |
When an adverb modifies an adjective or another adverb, it usually goes in front of the word that it modifies, for example:
| adverb | adjective | ||
| She gave him a | really | dirty | look. |
| adverb | adverb | ||
| We | quite | often | study English. |