| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [vb past] [prep] | 2506 |
|
| 2 | [prep] what [verb] [prep] | 1588 |
|
| 3 | [prep] [Wh det] [vb past] [prep] | 1047 |
|
| 4 | [prep] what [vb past] [prep] | 811 |
|
| 5 | [prep] what [vb past] [prep] | 811 |
|
