| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [pron] could [vb infin] | 126 |
|
| 2 | [noun sg] [prep] [pron] could [vb infin] | 83 |
|
| 3 | [noun sg] [prep] what [pron] could | 37 |
|
| 4 | [noun sg] [prep] what could [vb infin] | 21 |
|
| 5 | [noun sg] what [pron] could [vb infin] | 10 |
|
