Adverbs of degree can describe adjectives or other adverbs.
| + | a little/a bit | shy (adjective) |
| ++ | pretty/quite | shy (adjective) shyly (adverb) |
| +++ | very | shy (adjective) shyly (adverb) |
| ++++ | really | shy (adjective) shyly (adverb) |
| +++++ | extremely | shy (adjective) shyly (adverb) |