| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [vb past] [verb] [prep] | 163 |
|
| 2 | [prep] what [vb past] [verb] [prep] | 163 |
|
| 3 | about what [verb] [verb] [prep] | 33 |
|
| 4 | about [pron] [vb past] [verb] [prep] | 27 |
|
| 5 | about what [vb past] [verb] [prep] | 22 |
|
