| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb past] [prep] | 20492 |
|
| 2 | what [vb past] [prep] | 2590 |
|
| 3 | [adv] what [vb past] | 893 |
|
| 4 | [adv] what [prep] | 278 |
|
