| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [pron] [vb infin] | 34637 |
|
| 2 | [Wh pn] [modal v] [vb infin] | 9111 |
|
| 3 | [Wh pn] [modal v] [pron] | 275 |
|
