| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [vb past] [prep] a [adj] | 105 |
|
| 2 | [prep] what [vb past] [prep] a | 98 |
|
| 3 | [prep] what [vb past] [prep] [adj] | 38 |
|
| 4 | [prep] what [vb past] a [adj] | 25 |
|
