| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] i know perfectly | 5 |
|
| 2 | i know perfectly [adv] | 20 |
|
| 3 | i know perfectly well | 20 |
|
| 4 | i know perfectly [adv] | 20 |
|
| 5 | i know perfectly well | 20 |
|
