| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] perfectly well | 256 |
|
| 2 | know perfectly well | 171 |
|
| 3 | knows [adv] well | 71 |
|
| 4 | knows [adv] well | 71 |
|
| 5 | [vb -s] perfectly well | 27 |
|
| 6 | knows perfectly well | 14 |
|
| 7 | knows perfectly [adv] | 14 |
|
