| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [pron] could [vb infin] [prep] | 132 |
|
| 2 | [prep] what [pron] could [vb infin] | 126 |
|
| 3 | [prep] [pron] could [vb infin] [prep] | 59 |
|
| 4 | [prep] what could [vb infin] [prep] | 7 |
|
