| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [modal v] [vb infin] | 684 |
|
| 2 | [prep] [verb] [modal v] [vb infin] | 129 |
|
| 3 | [prep] what [verb] [modal v] | 18 |
|
| 4 | what [verb] [modal v] [vb infin] | 14 |
|
| 5 | [prep] what [verb] [vb infin] | 6 |
|
