| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [pron] must [vb infin] | 638 |
|
| 2 | [pron] [indef pn] [modal v] [vb infin] | 476 |
|
| 3 | [pron] [indef pn] must [verb] | 17 |
|
