| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [vb past] [prep] | 811 |
|
| 2 | [verb] what [vb past] [prep] | 648 |
|
| 3 | [verb] [prep] what [vb past] | 445 |
|
| 4 | [verb] [prep] [vb past] [prep] | 47 |
|
| 5 | [verb] [prep] what [prep] | 33 |
|
