| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [pers pn] [modal v] [vb infin] | 9286 |
|
| 2 | [pron] [pers pn] must [vb infin] | 588 |
|
| 3 | [Wh det] [pron] must [vb infin] | 393 |
|
| 4 | [Wh det] [pers pn] must [verb] | 376 |
|
