| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [vb past] [prep] | 2877 |
|
| 2 | know what [pron] [vb past] | 247 |
|
| 3 | know [pron] [vb past] [prep] | 90 |
|
| 4 | know what [vb past] [prep] | 67 |
|
