| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] [vb past] [prep] | 2877 |
|
| 2 | [to-vb] what [pron] [vb past] | 808 |
|
| 3 | [to-vb] [pron] [vb past] [prep] | 275 |
|
| 4 | [to-vb] what [vb past] [prep] | 105 |
|
